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Physics 101 Mechanics Q&A Archive of July 27, 2025

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July 27 of 2025

13-30. The four \( 2-\mathrm{kg} \) metal plates are stacked on top of one another. If the coefficient of static friction between any two plates is \( \mu_{s}=0.3 \), determine the smallest horizontal force \( \mathbf{F} \) that can be applied to the bottom plate which will cause any one of the…

A capacifor is a device in an electrical circuit that stores charge. the one particular circuit the charge on the capacitor Q varies in time as shown in the figure. a. At what time is the magnitude of the rate of change of the charge \( Q^{\prime} \) the greatest? b. Is \( \mathrm{O}^{\prime}…

PROBLEM 22 Determine the following parameters of the figure given. i. \( \boldsymbol{I}_{\boldsymbol{x}} \) ii. \( I_{y} \) iii. Centroid

ASSIGNMENT 5v Find the moment of inertia of the figure. 180

ASSIGNMENT 5ii Find the distance of the centroid from the axis \( \mathbf{s}-\mathbf{s} \). All dimensions are in meters. 177

COCIMTVPIETITFOS An object 1.50 cm high is heid 3.10 cm from a persens corneb, and ids refecerd image as meatured to be 0.165 om Nigh. (a) What is the magnification? \( \square \) \( = \) (b) Where is the knope (in cm]? \( \square \) on [from the corneal "rivior"] instrument used is called a…

A microscope with an overall magnification of 750 has an objective that magnifies by 190 . (a) What is the magnification of the evepiece? \( \square \) \( \times \) (b) If there are two other objectives that can be used, having magnifications of 100 and 400 , what other total magnifications are…

OSColPhys2016 252.2.006. What is the far point in m of a person whose eyes have a relaxed power of 51.8 D ? (Assume a lens-to-retina distance of 2.00 cm .) \( \square \) m SUBMIT ANSWER DETAILS MY NOTES ASK YOUR TEACHER

What is the far point in m of a person whose eyes have a relaxed power of 51.8 D ? (Assume a lens-to-retina distance of 2.00 cm .) \( \square \) m SUBMIT ANSWER 12. [- / 6.66 Points] DETAILS MY NOTES

18:49 Dim. 27 juill. 63 \% youtube.com YouTube CA physics ninja Se connecter Accueil Question 1 follow the trajectory shown first question says which ship Shorts A destroyer simultaneously fires two shells with the same initial speed at two different enemy ships. The Abonnements shells follow…

7. [- / 6.66 Points] What is the speed of light (in \( \mathrm{m} / \mathrm{s} \) ) in water? \( \square \) \( \mathrm{m} / \mathrm{s} \) What is the speed of light (in \( \mathrm{m} / \mathrm{s} \) ) in polystyrene? \( \square \) \( \mathrm{m} / \mathrm{s} \) \( + \) SUBMIT ANSWER

5. [-/6.66 Points] DEIAILS My NUIES ASRTOLETEALIER OSCUPTYN2066252 WA.006 without altering the incident rey. The neter podition is shown by the line \( M_{2} \). (a) Determine the angle through which the reflected ray rotates if the incident angle is \( 40.0^{\circ} \). \( \square \) - (b)…

DETAILS MY NOTES ASK YOUR TEACHER. 4. \( [-16.66 \) Points \( ] \) CSCoPhysters21.2:WR.003. Two light rays, originating from the same point, have an angle of \( 33.0^{\circ} \) between them and reflect off a plane mirror. Determine the angle between the reflected rays. SUBMIT ANSWER DETAILS MY…

Electric Potential Electric field strength of a point charge is \( \mathbf{E} \) and electric potential is \( V \) at a distance \( r \) from the point charge. What is the electric potential at a point for the same point charge where e field strength is \( E / 4 \) ? [2019] A) \( V / 4 \) B) 4…

\( \times \) G .て -I \( \nabla t 0 \varepsilon \mu e_{d} \)

Part 2 of 4 \( 1^{\circ} \) \( 2^{\circ} \) \( 3^{\circ} \)

oure metals, A and B and a series of alloys of these two metals were cooled from the liquid and the following information was obtained: \begin{tabular}{|l|l|l|l|l|l|l|l|} \hline Composition [\% of A] & 100 & 90 & 70 & 50 & 30 & 10 & 0 \\ \hline \( \mathbf{1}^{\text {st }} \) Arrest point [ \( {…

What is water that flows over the land surface into hodies of water? Infiltration Condensation Runoff Transpiration What is the process by which plants release water vapor? Evaporation Transpiration Evapotranspiration Condensation

What falls to the ground as rain, snow, sleet, or hail? Precipitation Runoff Evaporation Condensation What term describes water soaking into the soil? Runoff Precipitation Evaporation Infiltration

Determine the resultant moment produced by the forces about point \( O \).

3. ( 12 points) A long wire carrying 6.70 A of current passes through a uniform 0.310-T magnetic field directed as shown in the figure. The wire is bent so that a small portion of the wire travels at a \( 30.0^{\circ} \) angle through the field. a. (4 points) Find the direction of the magnetic…

Question 4 1 pts According to the scenario and diagram: The energy input to the heat pump from the cooling soda due to heat interactions is equal to the energy output from the heat pump to the surroundings due to heat interactions. True False Previous Next

Part 4 * Your answer is incorrect. (e) Resistor \( R_{4} \) is made of a very thin metal wire that is 9.5 mm long, with a diameter of 0.6 mm . What is the electric field inside this metal resistor? i \( \square \) 136.674 N/C eTextbook and Media Save for Later Attempts: 5 of 10 used Submit…

Consider the scenario presented in the last question on the homework before the quiz. For the period of time when the heat pump is in dynamic equilibrium and the food is still cooling, which of the following statements on energy conservation in the refrigerator chain of reactions are true, and…

13-30. The four \( 2-\mathrm{kg} \) metal plates are stacked on top of one another. If the coefficient of static friction between any two plates is \( \mu_{s}=0.3 \), determine the smallest horizontal force \( \mathbf{F} \) that can be applied to the bottom plate which will cause any one of the…

1 Minute Question 3 1 pts If you were designing a room in a house, where would be the better place to put a heater, near the floor or near the ceiling? Why? Consider your answer in the context of convection. Near the ceiling, because the air warmed by the heater would quickly spread down and…

EM, Ext F Quiz Question \( \checkmark \) Question. Question Time Elapsed: li Altempt due Aug rat 1 2 Minutes, 17 Seco When working with energy and interactions, generally "muscles" is a huge clue that \( \qquad \) energy is decreasing in the person. thermal chemical…

Quic EM. Ext F Quiz Unit EM Lesson 4 w Coe Is Unit EM Lesson 3 w Coe I Scier Unit EM Lesson 2 w Coe I Scier csusm.instructure.com/courses/41019/quizzes/275640/take/questions/3795620 Quiz mstructions Questio EM, Ext F Quiz (3) Question Time Elapsed: Question 4 1 pts Attempt due: Aug 1…

Question 3 1 pts Generally when working yith interactions, \( \qquad \) energy is directly related to speed and \( \qquad \) energy is directly related to temperature. kinetic, thermal motion, force potential, kinetic light, sound thermal, kinetic Previous Next * 1) Not saved Submit Quiz

When you apply the brakes on a bicycle, pads of rubber are pushed against the metal rims of the wheels to slow them down via a friction-type contact push/pull interaction between them. One of the problems that can occur with bicycle brakes is that of 'brake fade', which is the loss of the…

Question 4 1 pts When addressing energy and interactions and constructing appropriate diagrams, there are instances where the energy of a particular energy component does not change. (As shown in the extension.) For these situations, you would \( \qquad \) . Show the increase and decrease of…

Question 2 1 pts While the speed of the toy car was decreasing, what can you say about the tendency of the two interactions involved? The tendency of interaction with the hand to increase the speed (kinetic energy) of the cart was equal to the tendency of the interaction with the carpet to…

Question 1 1 pts For these questions consider a new situation associated with the child pushing the toy car across the carpet. Toward the end of the scenario, while still in contact with both the hand and the carpet, the toy car decreased in speed and stopped. Note that during this period the…

Time Elaps Please make sure to complete the extension and activities prior to attempting the extension quiz. Attempt due: 2 Minutes, Question 4 1 pts A chair is pushed across the floor, and then let go. The chair comes to a very quick stop. A previous student wrote an explanation narrative…

A block is observed to slide across the table, slowing down to a stop. Which one of the following \( G / R \) energy diagrams might plausibly describe the interaction between the block and table? (TE \( = \) thermal energy; KE = kinetic energy) Choice D Choice A Choice C Choice B

Which of the following provides evidence that the KINETIC energy of an object is decreasing? Its speed is increasing. Its temperature is decreasing. Its speed is constant. eams Its speed is decreasing. - Previous Next

Question 1 1 pts Which of the following provides evidence that the thermal energy of an object is decreasing? Its speed is increasing. Its speed is decreasing. Its temperature is increasing. Its temperature is decreasing.

Consider the following energy diagram and and an accompanying written narrative for what happens when someone's hand pushes a cart to get it to start moving. Written narrative: When a person's hand pushes the cart to start it moving, there is a contact push/pull interaction between the hand…

Which one of the following G/R energy diagrams best describes the interaction between the two carts in the previous problem? Choice B Choice C Choice D Choice A - Previous Next

Consider two carts moving along a track. Cart 1 is moving much more quickly than cart 2 . Both carts 1 and 2 have some clay attached to their ends. Cart 1 catches up to cart 2 and collides with it. They stick together and the two carts move to the right at a speed in between the initial speeds…

17.) The velocity-time graph of the motion of Car A and Car B is given below. a.) Which car started first? b.) How much time did each car take to attain the same speed? c.) Which car possesses more acceleration? d.) Which car has more displacement?

You've j (10) Calc YouTub: (10) Difl Google How to PowerPc Vear 2 - Pearson Course Electron mylabmastering.pearson.com/courses/13608291/menu/b987ef69-9c58-4472-bd38-3068b7f08a5e Relaunch to update Course Tools Use Coulomb's law to determine the magnitude of the electric field at points A and B…

13-23. Determine the acceleration of each block if \( A \) and \( B \) have a mass \( m \) and \( C \) has a mass \( 2 m \). Neglect the mass of the cords and the pulleys. SOLUTION Equations of Motion: For Block \( A \) [FBD (a)]

Determine the acceleration of each block if ( A ) and ( B ) have a mass ( m ) and ( C ) has a mass ( 2 m ). Neglect the mass of the cords and the pulleys.

13-23. Determine the acceleration of each block if \( A \) and \( B \) have a mass \( m \) and \( C \) has a mass \( 2 m \). Neglect the mass of the cords and the pulleys. SOLUTION Equations of Motion: For Block \( A \) [FBD (a)]

\begin{tabular}{|l|l|l|l|l|l|l|l|} \hline Composition [\% of A] & 100 & 90 & 70 & 50 & 30 & 10 & 0 \\ \hline \( \mathbf{1}^{\text {st }} \) Arrest point [ \( { }^{\circ} \mathbf{C} \) ] & 50 & 54 & 35 & 10 & 100 & 57 & 66 \\ \hline \( \mathbf{2}^{\text {nd }} \) Arrest point [ \( { }^{\circ}…

Question 5. [20] 'erform the indicated operations and express thee answers in the unit indicated and determine he values to be inserted in the blanks. a) \( 700 \mu \mathrm{~A}-0.4 \mathrm{~mA}=\square \mathrm{A}= \) \( \qquad \) mA b) \( 600 \mathrm{MW}+300 \times 10^{4} \mathrm{~W}= \) \(…

\[ \begin{array}{l} v_{0}=50 \mathrm{~m} / \mathrm{s} \\ v_{p}=? \\ t=3 s \\ h=? \end{array} \] \[ V_{F}=V_{0}+9.7 \] \[ V_{F}=(50 \mathrm{~m} / \mathrm{s})+\left(10 \mathrm{~m} / \mathrm{s}^{2}\right)(3 \] \[ v_{r}=50 \mathrm{~m} / \mathrm{s}+30 \mathrm{~m} / \mathrm{s} \] \[ v_{f}=80…

1.18 An exercise bike that you peddle in place has a bicycle chain connecting the wheel you peddle to the large wheal in front. For the wheel diameters shown, calculate how many rpm must you produced to turn the large wheel at 75 rpm ? Ans.: \( \mathbf{3 0 ~ r p m} \) 1.19 A space station…

1.15 A jogger on a circular track that has a radius of 0.250 km runs a distance of 1.00 km . What angular dista the jogger cover in (a) radians and (b) degrees? Ans.: 4 rad; \( 229.30^{\circ} \) 1.16 You measure the length of a distant car to be subtended by an angular distance of \(…

13-23. Determine the acceleration of each block if \( A \) and \( B \) have a mass \( m \) and \( C \) has a mass 2 m . Neglect the mass of the cords and the pulleys. SOLUTION Equations of Motion: For Block \( A \) [FBD (a)]

In a 4-stroke single cylinder diesel engine, the inlet valve opens at \( 10^{\circ} \) before TDC and closes at \( 40^{\circ} \) after BDC . The exhaust valve opens at \( 25^{\circ} \) before BDC and closes at \( 15^{\circ} \) after TDC. The percentage of time for which both the valves remain…

13-23. Determine the acceleration of each block if \( A \) and \( B \) have a mass \( m \) and \( C \) has a mass \( 2 m \). Neglect the mass of the cords and the pulleys. SOLUTION Equations of Motion: For Block \( A \) [FBD (a)]

the human heart. 1.1 Tabulate the labels numbered 1 to 20 of diagram A and supply the function of each part. 1.2 Explain the difference between the thickness of the walls in the atria and ventr 1.3 Which ventricle (left or right) has the thickest muscular wall? Give a reason for your…

A box rests at a point 2 m from the axis of a horizontal platform. \( \mu=0.25 \). The angular speed of the platform is slowly increased from \( 0 \mathrm{rad} / \mathrm{s} \). At what angular speed will the box starts to slide? Ans.: \( 1.1 \mathrm{rad} / \mathrm{s} \)

13-30. The four \( 2-\mathrm{kg} \) metal plates are stacked on top of one another. If the coefficient of static friction between any two plates is \( \mu_{s}=0.3 \), determine the smallest horizontal force \( \mathbf{F} \) that can be applied to the bottom plate which will cause any one of the…

3. A line of charge is placed on the \( x \)-axis between \( x=-5.00 \mathrm{~m} \) and \( x=+5.00 \mathrm{~m} \). Thelinear charge density is given by \( \lambda=-10 \mu C / \mathrm{cm} \). Consider a field point on the \( y \)-axis, located at \( y=2.0 m \), as shown below. a. (2 points) How…

For a solid disc of radius \( R \) these equations give \[ \begin{aligned} \sigma_{r} & =(3+v) \frac{\rho \omega^{2}}{8}\left(R^{2}-r^{2}\right) \\ \sigma_{H} & =\frac{\rho \omega^{2}}{8}\left[(3+v) R^{2}-(1+3 v) r^{2}\right] \end{aligned} \]

if Format - Purdue... 8.11 - ENOR 5; Program." Welcome | My Portal que Question 37 1 pts What is output? statement = count("Will was willing to help with the task, but wished they had asked earlier.", "wi") A. statement = \[ \begin{array}{llllllllll} 0 & 0 & 1 & 0 & 0 & 1 & 0 & 0 & 0 & 1 \\ 0…

Question 1. [10] For each of the following, convert the numbers to power of ten notation, then perform the ndicated computations. Round your answer to four digits. a) \( (0.00985) \cdot(4700) \) b) \( (0.0892) /(0.0000673) \) c) \( \left[(0.0025)^{1 / 2}\right] /\left[1.6 \times 10^{4}\right]…

Question 5. [20] 'erform the indicated operations and express thee answers in the unit indicated and determine he values to be inserted in the blanks. a) \( 700 \mu \mathrm{~A}-0.4 \mathrm{~mA}= \) \( \qquad \) \( \mu \mathrm{A}= \) \( \qquad \) mA b) \( 600 \mathrm{MW}+300 \times 10^{4}…

www. bing \( 202550-\mathrm{C} \) My Shelf Beyond L: Beyond La Density OWLv2 | MindTap collegece Mindtap worksheets beyondlabz.com/multiembedq.php?id=10034-10035-10036-10037-10038-10039-10040-10041-10042-10043-10044-10045-10254 Procedure Section 2 1. Select Ethanol from the list of Fluids in…

CHAPTER 2 －ATOMS，MOLECULES，AND IONS pass． Propi Q Finemin Figh 2 of 2 III metat， 43 20245．31 101, usk， 08 Mas．205．204 102.4235 in－வடிட⿱亠幺十月 Hometrichelingly 0

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Problem - 5.10 : A body of mass 2 kg has an initial speed \( 5 \mathrm{~m} / \mathrm{s} \). A force acts as it for some time in the direction of motion. The force-time graph is shown in figure. Find the final speed of the body.

whing com 2005SU-CHEM-1411.537A: x OWLv2 | Online teaching - Mindtap - Cerigage fouri- prod02-cnow-owl.cengagenow.com/ilm/takeAssignment/takeCXPCompliantActivity.doriocator=assignment-t CHAPTER 2 - ATOMS, MOLECULES, AND IONS Previous Page 2 of 26 \#\# Noxt According to Rutherford, the nucleus…

The Empire State Building in New York is the venue for an annual running competition. Competitors race up 86 floors ( 1576 stairs) or 320 metres to finish close to the top. The record fastest time is 9 minutes 33 seconds by Paul Crake in 2003. His mass was 62.5 kg . a Calculate Paul Crake's…

7 Scientists use a ballistic pendulum to work out the speed of a projectile that hits it. The block has a mass of 4.7 kg and moves with an initial speed of \( 1.24 \mathrm{~m} / \mathrm{s} \) when it is hit. a State the equation linking kinetic energy, mass and velocity. b Calculate the kinetic…

1.5 The piston, connecting rod, and crank of an engine system are shown in Figure P1.5. Calculate a. The torque \( T \) required to hold the system in equilibrium. b. The normal or axial force in the \( \operatorname{rod} A B \). Given: A total gas force \( P=18 \mathrm{kN} \) acts on the…

2. The shaft is made of A-36 steel and is fixed at its ends A and D. When TB = 40 kip-ft and TC = 20 kip-ft, determine the torsional support reactions at A and D.

(c) In an attempt to beat the world altitude record for a balloon, a helium balloon containing \( 15000 \mathrm{~m}^{3} \) of helium at a temperature of 288 K was launched from sea level, where the pressure of the gas was 101 kPa . The balloon, carrying a payload, rose to an altitude of 32.0 km…

Directions: Analyze Census: The anpare speeles diversity in two real philippine scosystems using simpson's Diversity Index. Evaluate ecosystem health and propose conservation strategles. Scenario: You are part of a biodiversity research team studying two different locations in the…

Situation 15 The shaft is made of A-36 steel and is fixed at its ends A and D. It is subjected to torsional loads of 40 kip-ft and 20 kip-ft at B and C, respectively. 28. Determine the torsional reaction at A. a. 2 kip-ft c. 22 kip-ft b. 12 kip-ft d. 32 kip-ft 29. Determine the torsional…

S．T التارِيخ ：Eqiobl Ex：If \( A_{i j} \) is a skew－symmetric tensor，Prove that Sd \[ \begin{aligned} A_{i j}=-A_{j i} & \\ \left(\delta_{j}^{i} \delta_{l}^{k}\right. & \left.+\delta_{l}^{i} \delta_{j}^{k}\right) A_{i k} \end{aligned}=\delta_{\delta_{j} \delta_{l}^{k} A_{i k}+\delta_{l}^{i}…

If \( \vec{r}=\vec{a} \cos w t+\vec{b} \sin w \) then \( \frac{d^{2} \vec{r}}{d t^{2}}+w^{2} \vec{r} \) is equal to: (a) 0 (b) 1 (c) 2 (d) -1

6. The velocity vector of 2-D fluid flow is given as: \[ \vec{V}=\left(8 x^{2} y-\frac{8}{3} y^{2}\right) i+\left(-8 x y^{3}+\frac{8}{3} x^{3}\right) j \] Show that the velocity vector represents a possible cases of an irrotational flow.

1.2 A frame consists of three pin-connected members \( A B C \) of length \( 3 a \), and \( A D E \) and \( B D \) carry a vertical load \( W \) at point \( E \) as shown in Figure PI.2. Find a. The reactions at supports \( A \) and \( C \). b. The internal forces and moments acting on the…

For the curve \( r=a(I-\cos \theta) \) : (a) \( p^{2}=\frac{r^{3}}{2 a} \) (b) \( p^{2}=\frac{p^{2}}{2 a} \) (c) \( p^{2}=\frac{r}{2 a} \) (d) None of these

12 www.shsph.blogspot.com What's More Classify the physical situation as constant velocity or constant acceleration: 1. Riding a Ferris Wheel 2. Freely falling object 3. Shooting a ball in a ring 4. Rowing a boat 5. Driving in a curve road 6. Falling parachute 7. Throwing a golf ball 8.…

Activity 2: Wildlife Census: The Case of the Vanishing Birds Gr.\&Sec: ystems using Simpson's JN Diversity Index. Evaluate compare species diversity in two real Philippine eategies. Scenario: You are part of a biodiversity rese - Mt. Apo Natural P - Lowland Agrofor (Mindanao) - A protected…

K12 LESSONS \( \qquad \) contains small particles of liquid or solid dispersed in a gas.

K12 LESSONS \( \qquad \) is formed when many gas particles are trapped in a liquid or solid.

A colloid is one of the primary types of mixture. TRUE 2 FALSE

The particles in the dispersed phase cannot take place in different phases depending on how much water is available. TRUE FALSE

The Tyndall Effect is the effect of light scattering in colloidal dispersion, while showing no light in a true solution. TRUE FALSE

An easy way of determining whether a mixture is colloidal or not is through the use of the Tyndall Effect. TRUE FALSE

moments of the pieces. Use this to find the centroid of each region. 7. \( x= \)

KDP/practice BOOK Chemical Bo Q. 43 Which one shows high \%age of the ionic character? B. HF A. HI D. HBr C. HCl Q. 44 Dipole moment gives the information about: B. Bond angles A. \% ionic character C. Geometry of the molecules D. All of the above Q. 45 Bond length depends upon: B. Nature of…

PROCEDURE (A)VemierCallipers Data collection procedure 1. Examine the vernier calipers. Take note of the value of the smallest reading on the main scale and t he number of divisions on the vernier scale. From this data, calculate the least count of the vemier cal pers. 2 Use the vernier…

I. Classify the following as physical or chemical change. Think of the reason in your mind : 1. Heating wax 2. Switching an electric bulb 3. Baking of potatoes 4. Ripening of a fruit \( \qquad \) icol chemical 5. Making butter from cream chemiool 6. Burning of coal \( \qquad \) chemaical 7.…

Wornshee? I. Classify the following reactions on the basis of the terms given below : Thermal reaction, Electrolytic reaction, Catalytic reaction, Photochemical reaction. 1. \( 2 \mathrm{KClO}_{3} \xrightarrow{\mathrm{MnO}_{2}} 2 \mathrm{KCl}+3 \mathrm{O}_{2} \) 2. \( \mathrm{Fe}+\mathrm{S}…

NUMERICAL RESPONSE QUESTIONS QIV. Solve the following questions. 1. Calculate the torque acting on spanner of length 20 cm to loosen a nut by a force of 50 N . if the same nut is to be loosen up by force of 100 N , what should be length of spanner? (Ans. 10 N m and 10 cm )

SHREE NIKETAN PATASALA (CBSE) SCHOOLS CLASS 6 -SCIENCE WORKSHEET-2025-26 DATE: Ch 4 -Exploring magnets SUBMISSION DATE: I. Choose the correct answer: 1. A bar magnet is immersed in a heap of iron filings and pulled out. The amount of iron a) North pole is much more than the south pole \( \qquad…

YouTube Search Create 1. Oil and water 2. Sand and water 3. Marbles and water 4. Salt and water 5. Sugar and water 6. Soy sauce and water 7. Wine and water 8. Poster paint and water 9. Wax and water 10. Iron fillings and water ISPENSIONS | Science 6 K12 Video Lesson Sir…

2. A solid steel disc 300 nm diameter and of small constant thickness has a steel ring of outer diameter 450 mm and the same thickness shrunk onto it. If the interference pressure is reduced to zero at a rotational speed of 3000 rev/min. calculate; a) the radial pressure at the interface…

mielewskd uiz E MAT-2320 Module 3 Quiz E 2 of 10 Find \( (\bar{x}, \bar{y}) \) for the lamina of uniform density \( \rho \) bounded by the graphs of the equations \( x=9-y^{2} \) and \( x=0 \) \( (\bar{x}, \bar{y})=\left(0, \frac{18}{5}\right) \) \( (\bar{x}, \bar{y})=\left(\frac{18}{5},…

University - G End of Semester Assessm Fundamentals of Public H naij.com Speed Dial Ims.miva.university/mod/quiz/attempt.php Dashboard My courses Reports \& Analytics Recent PEN UNIVERSITY Time left 0:44:42 Hide Question 1 Not yet answered Marked out of 2 Flag question Question 2 Not…

Finally, consider the vehicle moving at the constant speed of \( 96 \mathrm{~km} / \mathrm{h} \), assuming the same aerodynamic drag above and then calculate and compare the reactions on the wheels: Following your calculations: \( F_{\text {ro }} \) \( \square \) \( F_{r c} \), where \( F_{r…

Assume that \( \boldsymbol{x}_{\boldsymbol{r}}=1.65 \boldsymbol{m} \) with a wheel base (distance between A and B) of \( 2.5 \boldsymbol{m} \) for a total mass of 1360 kg and calculate the reaction of the set of front and rear wheels when the car is at rest. - Front wheels: \( \boldsymbol{F}_{f…

Equilibrium of forces and moment Assume that \( \boldsymbol{x}_{\boldsymbol{r}}=1.65 \boldsymbol{m} \) with a wheel base (distance between A and B) of \( 2.5 \boldsymbol{m} \) for a total mass of 1360 kg and calculate the reaction of the set of front and rear wheels when the car is at rest. -…

Case 3: brakes applied on both front and rear wheels simultaneously The normal force on the rear wheels is \( F_{r}= \) \( \square \) 43.271 \( N \) and \( F_{f}= \) \( \square \) 15.589 \( N \) on the front wheel The time required for the vehicle to come to a complete stop is is \( \Delta t=…

The centre of a truck, mass \( \mathbf{6 ~ M g} \), is \( \mathbf{9 0 0 ~ m m} \) in front of the centre line of the axle, \( \mathbf{2 . 5 m} \) behind the centre line of the front axle and \( \mathbf{1} \boldsymbol{m} \) above ground level. The coefficient of friction between the wheels and…

4. Still assuming that only front brakes are applied, the minimum value of the coefficient of friction between the set of front wheels and the horizontal surface the plane is parked on is \( \square \) and then The ratio between respective normal force at the the contact between the wheels and…

Case 1: when the engine is switched off: - The reaction on the rear wheel is: \( F_{r}= \) \( \square \) \( N \) - The reaction on the front wheel is: \( F_{f}= \) \( \square \) \( N \) Case 2: when the engine is switched on: - The reaction on the front wheel is: \( \boldsymbol{F}_{r_{0}}= \)…

During an engine test on the ground, a propeller thrust \( T \) is generated on the light aeroplane of mass \( m \). The centre of gravity is at point G . For safety during test, the main wheels at B are locked to prevent the plane from skidding. The small tail wheel at A has no brake. Analyze…

Given two points and the rectangular representation of a force: \[ \left\{\begin{array}{l} A(3.46,2,-2.83) \\ B(-3.5,0,3.38) \\ \vec{F}=60.1 \vec{i}-0 \vec{j}-60.1 \vec{k} \end{array}\right. \] Assuming that the force is in \( [N] \) and \( \overrightarrow{A B} \) in [dm] analyze the system in…

A. Tick the correct option. 1. In dry weather we sometimes experience our hair stronch living apon white corrorgoas hair. Which force do you think is responsible for that friction (a) Gravity direction of the force exert 2. What is (a) 3. The pascal Downwards (a) pas (b) newton earth on…

rection: From the short information that you have read, answer the following questions on the blank provided. Use a separate sheet of paper 1. What is evaporation? 2. What is needed to achieve evaporation process? 3. Give 3 examples of situation where evaporation process was observed 4. What…

Ten resistors are connected to a battery of voltage \( \mathrm{U}_{\mathrm{PN}}=4.5 \mathrm{~V} \), as shown in the following circuit. Given: \( \mathrm{R}_{1}=0.60 \Omega ; \mathrm{R}_{2}=4.0 \Omega ; \mathrm{R}_{3}=2.0 \Omega ; \mathrm{R}_{4}=1.0 \Omega ; \mathrm{R}_{5}=3.0 \Omega ;…

does sound travel the slowest? A. Tick the correct option. (d) Air 1. In which of the following media (c) Glass (b) Milk dia will soun 2. In which of the following \( m \) (d) Iron shee (a) Iron sheet at \( 10^{\circ} \mathrm{C} \) (d) s (c) Iron sheet at \( 30^{\circ} \mathrm{C} \) (c) \(…

Given two points and the rectangular representation of a force: \[ \left\{\begin{array}{l} A(3.46,2,-2.83) \\ B(-3.5,0,3.38) \\ \vec{F}=60.1 \vec{i}-0 \vec{j}-60.1 \vec{k} \end{array}\right. \] Assuming that the force is in \( [N] \) and \( \overrightarrow{A B} \) in \( [d m] \) analyze the…

The data in Table Q1 and Table Q2 were recorded during particle size analyses tests in the laboratory. A. Plot the grading curve (11 Marks) B. Determine the grading characteristics of the soil (6 Marks) C. Classify the soil according to the British Soil classification system (3 Marks) Table Q1…

Time left 0:14:4 Given two points and the rectangular representation of a force: \[ \left\{\begin{array}{l} A(3.46,2,-2.83) \\ B(-3.5,0,3.38) \\ \vec{F}=60.1 \vec{i}-0 \vec{j}-60.1 \vec{k} \end{array}\right. \] Assuming that the force is in \( [N] \) and \( \overrightarrow{A B} \) in \( [d m]…

A BC What's More Direction: Write Sieving or Filtering in identifying the appropriate technique of separating mixtures. Write the answer in your journal. 1. flour from small pebbles - \( \qquad \) 2. mongo from baby powder - \( \qquad \) 3. milk from grated coconut - \( \qquad \) 4. dried tea…

d) A precipitate of barium sulphate \( \left(\mathrm{BaSO}_{4}\right) \) can be prepared be reacting barium chloride, \( \mathrm{BaCl}_{2} \) with another reagent. iii) Write the chemical formula of the other reagent iv) Write a balanced chemical equation showing the formation of barium…

Question 2 The barge \( B \) is pulled by two tugboats \( A \) and \( C \). At a given instant the tension in cable \( A B \) is 4500 N and the tension in cable \( B C \) is 2000 N . Determine by trigonometry the magnitude and direction of the resultant of the two forces applied at \( B \) at…

How far from the lens is the final image formed? 1) 11 cm 2) 12 cm 3) 13 cm 4) 14 cm 81. The curvature radii of a concavo - convex glass lens are 20 cm and 60 cm . The convex surface of the lens is silvered. With the lens horizontal, the concave surface is filled with water. The focal length of…

Problem 5 Calculate the moment of inertia \( \mathrm{I}_{\mathrm{Y}^{\prime}} \) and \( \mathrm{I}_{\mathrm{X}^{\prime}} \) (about the respective x and y centroids)

13-30. The four \( 2-\mathrm{kg} \) metal plates are stacked on top of one another. If the coefficient of static friction between any two plates is \( \mu_{s}=0.3 \), determine the smallest horizontal force \( \mathbf{F} \) that can be applied to the bottom plate which will cause any one of the…

QUESTION 8 Two pure metals, A and B and a series of alloys of these two metals were cooled from the liquid state and the following information was obtained: \begin{tabular}{|l|l|l|l|l|l|l|l|} \hline Composition [\% of A] & 100 & 90 & 70 & 50 & 30 & 10 & 0 \\ \hline \( \mathbf{1}^{\text {st }}…

II. What is the most logical sequence of steps in the scientific method? A. define problem \( \rightarrow \) experiment \( \rightarrow \) conclude \( \rightarrow \) hypothesize B. conclude \( \rightarrow \) define problem \( \rightarrow \) hypothesize \( \rightarrow \) gather data \(…

risk she correct option. Busg CISES 1. In dir weather, we sometimes experience our hair strands flying apart while combing our nair. Which force do you think is responsible for this? (a) Gravity (b) Friction (c) Electrostatic force (d) Magnetic force 2. What is the direction of the force…

a. Brown \( x \) white b. brown \( \times \) palomino c. palomino \( x \) palomino Genotypic \%: \( \qquad \) Phenotypic \%: \( \qquad \) Genotypic \%: \( \qquad \) Phenotypic \%: \( \qquad \) Genotypic \%: \( \qquad \) Phenotypic \%: \( \qquad \)

Now remove the charge. Click on the Properties button to change the magnitude of the charge to +1.0 with a mass of 1.0 . Remember to click on Done to set the values of the charge magnitude and mass. Add the charge to the electric field. 1. Where does the electric field point? 2. What can you…

4. Next, remove the charge and in the properties setting change the charge to a magnitude of -5.0 . What happens overall to the magnitude of the forces? \[ E=\frac{k[q]}{r^{2}} \]

Ex-RCISES Hick the correct option. (b) Leech odite? (d) Snake 1. Which of these orga (b) Frog (a) Hen 2. The urethra in males helps transport \( \qquad \) (b) only semen (a) only urine (d) only ova (c) both urine and semen 3. Which set of reproductive terms given below forms the correct…

Electric Field of Dreams Lab Handout Click on the "Electric Field of Dreams Simulation" link to perform simulations in the setup satisfying the given conditions. Observe the electric field when no charge is added then click on the Properties button and insert a charge of magnitude -1.0 and of…

Save Evaluate the line integral \( \int_{\mathrm{C}} \nabla \varphi \cdot \mathrm{dr} \) for the following function \( \varphi \) and oriented curve C (a) using a parametric description of C and evaluating the integral directly, and (b) using the Fundamental Theorem for line…

13-73. The \( 52-\mathrm{kg} \) skier is coasting freely down the hill with a speed of \( 4 \mathrm{~m} / \mathrm{s} \) at \( x=10 \mathrm{~m} \). Determine the normal reaction on the ground and the rate of increase in speed at the instant shown. Neglect friction and the size of the skier.

Electric Field of Dreams Lab Handout Click on the "Electric Field of Dreams Simulation" link to perform simulations in the setup satisfying the given conditions. Observe the electric field when no charge is added then click on the Properties button and insert a charge of magnitude -1.0 and of…

14. Rank the value of \( f \overrightarrow{\mathrm{~B}}, \overrightarrow{\mathrm{dl}} \) for the closed paths shown in figure from the smallest to largest. (a) \( a, b, c, d \) (b) \( a, c, d, b \) (c) \( a, d, c, b \) (d) \( a, c, b, d \) 15. A long solenoid is formed by winding \( 20…

18. 18 (c) \( \frac{\mu_{0} I}{5 \pi d} \) (d) \( \frac{\mu_{0} I}{7 \pi d} \) 4 Two long parallel wires are at a distance 2d apart. They carry steady equal current flowing out of the plane of the paper as shown. The variation of the magnetic field along the line \( X O C \) is given…

3 players in areality T.V show are brought to centre of a large flat fierd. Each is givon a motershck, a Compacs, a cacculator a shovel (and in diftoront order for each Constant). The following 3 dispeacements \( \vec{A}=72.4 \mathrm{~m}, 32^{\circ} \) Eact of Norm \( \vec{B}=57.3…

13-74. If the bicycle and rider have a total weight of 180 lb , determine the resultant normal force acting on the bicycle when it is at point \( A \) while it is freely coasting at \( v_{A}=6 \mathrm{ft} / \mathrm{s} \). Also, calculate the increase in the bicyclist's speed at this point.…

(16-14) A charge of 6.15 mC is placed at each conrner of a square 0.100 m on a side. Determine the magnitude and direction of the force on each charge.

13-74. If the bicycle and rider have a total weight of 180 lb , determine the resultant normal force acting on the bicycle when it is at point \( A \) while it is freely coasting at \( v_{A}=6 \mathrm{ft} / \mathrm{s} \). Also, calculate the increase in the bicyclist's speed at this point.…

(16-29) Calculate the electric field at the center of a square 1.22 m on a side if the other three corners are occupied by \( 3.285 \times 10^{-6} \mathrm{C} \) charges.

(16-28) The electric field midway between two equal but opposite point charges is \( 386 \mathrm{~N} / \mathrm{C} \), and the distance between the charges is 16.0 cm . What is the magnitude of the charge on each?

(16-44) How close must two electrons be if the magnitude of the electric force is equal to the weight of either at the Earth's surface?

(16-29) Calculate the electric field at the center of a square 1.22 m on a side if the other three corners are occupied by \( 3.285 \times 10^{-6} C \) charges.

(16-28) The electric field midway between two equal but opposite point charges is \( 386 \mathrm{~N} / \mathrm{C} \), and the distance between the charges is 16.0 cm . What is the magnitude of the charge on each?

(16-27) An electron is released from rest in a uniform electric field and accelerates to the north at a rate of \( 105 \mathrm{~m} / \mathrm{s}^{2} \). Find the magnitude and direction of the electric field.

(16-23) Determine the magnitude of the acceleration experienced by an electron in an electric field of \( 756 \mathrm{~N} / \mathrm{C} \). How does the direction of the acceleration depend on the direction of the electric field at the position of this charge? [Hint: Use \( F=m a \), where the…

*13-56. Cartons having a mass of 5 kg are required to move along the assembly line at a constant speed of \( 8 \mathrm{~m} / \mathrm{s} \). Determine the smallest radius of curvature \( \rho \) for the conveyor so the cartons do not slip. The coefficients of static and kinetic friction between…

(16-8) A person scuffing her feet on a wool rug on a dry day accumulates a net charge of \( -28 \mu \mathrm{C} \). How much excess electrons does she get, and by how much does her mass increase? [mass of electron \( m_{e}=9.11 \times 10^{-31} \mathrm{~kg} \) ] (16-9) What is the total charge of…

(16-8) A person scuffing her feet on a wool rug on a dry day accumulates a net charge of \( -28 \mu C \). How much excess electrons does she get, and by how much does her mass increase? [mass of electron \( m_{e}=9.11 \times 10^{-31} \mathrm{~kg} \) ] (16-9) What is the total charge of all the…

13-82. The cyclist is coasting freely down the hill with a speed of \( 15 \mathrm{~m} / \mathrm{s} \) at \( y=0.2 \mathrm{~m} \). Determine the resultant normal reaction on the bicycle and the rate of increase in speed at the instant shown. The bicycle and rider have a total mass of 80 kg .…

13-74. If the bicycle and rider have a total weight of 180 lb , determine the resultant normal force acting on the bicycle when it is at point \( A \) while it is freely coasting at \( v_{A}=6 \mathrm{ft} / \mathrm{s} \). Also, calculate the increase in the bicyclist's speed at this point.…

16. A given formula is derived for the velocity of an object \( v \) that varies with time expressed as \( v=a t^{2}+b t+c \) where velocity \( v \) and time \( t \) are expressed in terms of SI units; determine the units of constants \( a, b \) and \( c \) in the given equation.

13-74. If the bicycle and rider have a total weight of 180 lb , determine the resultant normal force acting on the bicycle when it is at point \( A \) while it is freely coasting at \( v_{A}=6 \mathrm{ft} / \mathrm{s} \). Also, calculate the increase in the bicyclist's speed at this point.…

Determine the acceleration of each block if \( A \) and \( B \) have a mass \( m \) and \( C \) has a mass \( 2 m \). Neglect the mass of the cords and the pulleys. SOLUTION Equations of Motion:

Problem 1 Determine the required input torque \( M_{12} \) for static equilibrium, for the mechanism shown in Figure Q1. Force \( \bar{F} \) has a magnitude of 1000 N . Figure Q1

Problem 3 For the gear train shown in Figure Q3, determine the output speed \( \omega_{2} \) if \( \omega_{1}=200 \mathrm{rpm} \mathrm{CW} \). \( N_{1}=20 ; N_{3}=25, N_{4}=70, N_{5}=15, N_{6}=15, N_{7}=35, N_{8}=80 \). Figure Q3

13-21. The \( 400-\mathrm{kg} \) mine car is hoisted up the incline using the cable and motor \( M \). For a short time, the force in the cable is \( F=\left(3200 t^{2}\right) \mathrm{N} \), where \( t \) is in seconds. If the car has an initial velocity \( v_{1}=2 \mathrm{~m} / \mathrm{s} \)…

EXAMPLE Given: The motor winds in the cable with a constant acceleration such that the \( 20-\mathrm{kg} \) crate moves a distance \( \mathrm{s}=6 \mathrm{~m} \) in 3 s , starting from rest. \( \mu_{k}=0.3 \). Find: The tension developed in the cable. Plan:

Determine the acceleration of each block if ( A ) and ( B ) have a mass ( m ) and ( C ) has a mass ( 2 m ). Neglect the mass of the cords and the pulleys.

2. The shaft is made of A-36 steel and is fixed at its ends A and D. When TB = 40 kip-ft and TC = 20 kip-ft, determine the torsional support reactions at A and D.

Situation 15 The shaft is made of A-36 steel and is fixed at its ends A and D. It is subjected to torsional loads of 40 kip-ft and 20 kip-ft at B and C, respectively. 28. Determine the torsional reaction at A. a. 2 kip-ft c. 22 kip-ft b. 12 kip-ft d. 32 kip-ft 29. Determine the torsional…