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Physics 101 Mechanics Q&A Archive of December 1, 2021

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December 1 of 2021

How much heat is required to warm 1.30 L of water from 30.0 ?C to 100.0 ?C? (Assume a density of 1.0g/mL for the water.
How much heat is required to warm 1.30 L of water from 30.0 ?C to 100.0 ?C? (Assume a density of 1.0g/mL for the water.)
torque
The radius of the Earth is 6400 km. A spacecraft orbits the Earth at a height of 1600 km above the Earth’s surface. Find the gravitational acceleration of the spacecraft at this height
Determine the support reactions for the system shown, given the force \( P \) and distributed load (varying between \( w_{1} \) and \( w_{2} \) ) noted below. All dimensions are in millimetres \( (\mathrm{mm}) \).
How fast the ISS (International Space Station) should move in a circular orbit at In order for an 89 kg astronaut to feel an acceleration equivalent to 1 g? Consider that The height of the ISS is 510 km and the radius of the Earth is 6370 km.
b. If you know that the duration of the PR-interval in healthy adult is (0.12 to 0.2 seconds). Does this patient meat the condition?
b. If a patient undergoing a surgery, and doctors use IV saline to sustain patients through surgery. Does the hanging saline bag pressure will be greater than the patient’s blood pressure and why? Also, how you can keep the saline flowing laminar?
a. If a patient suffers from abdominal aortic aneurysm, what is the risk of such condition and how this will affect blood flowing in this vessel?
The figure below shows the position of two balls elastic collision Assume the balls have separating in opposite directions after collision: (40 marks) different magnitudes on thcir perfectly velocities and masses before Indicate the direction of the momentum of_ each ball after collision 10…
Calculate the net torque on the disk of diameter 1 m with respect to an axis passing through the center as shown in the figure. The 15 N force is perpendicular to the edge of the disk, while the 9.50 N force is tangent to the disk.
Please Answer in GRESA (Given, Required, Equation, Solution, Answer) FormatA 599.56kg box is placed on top of a 18.79° inclined plane with a coefficient of kinetic friction of 0.05. The box is attached to a pulley with a hanging mass of 136.42kg. What is the acceleration of the system?…
A 599.56kg box is placed on top of a 18.79° inclined plane with a coefficient of kinetic friction of 0.05. The box is attached to a pulley with a hanging mass of 136.42kg. What is the acceleration of the system? Calculate the tension force on the rope.
The velocity of a 3.00 kg particle is given by v = (8.00tî + 3.00t²ĵ) m/s, with time t in seconds. At the instant the net force on the particle has a magnitude of 35.0 N, what are the direction (relative to the positive direction of the x axis) of (a) the net force and (b) the particle's…
The velocity of a 3.00 kg particle is given by i - (8.00ti + 3.00Pj; m/s, with time / in seconds. At the instant the net force on the particle has a magnitude of 35.0 N, what are the direction (relative to the positive direction of the x axis) of (a) the net force and (b) the particle's…
A force of 160.N parallel to an inclined plane is required to move a 200.N weight up the inclined plane with a constant velocity: Find the coefficient of sliding friction if the plane is indined at 30.0 degrees
How would you derive the final speed of running to force?
How would you derive the final speed of running to force?
How would you get the force in energetics of running?
How much force does a 15-kg leg exert during running if the person has a 2-m stride and runs at a speed of 8 m/s?
Solution?
3. A 1674 kg car going 24 m/s rear ends a 1025 kg compact car going 18m/s on ice in the same direction. The two cars stick together. How fast do the two attached cars move immediately after the collision?
A \( 1320 \mathrm{~kg} \) car, C, moving north at \( 30 \mathrm{~m} / \mathrm{s} \), collides with a \( 2200 \mathrm{~kg} \) car, D, moving east at \( 10 \mathrm{~m} / \mathrm{s} \). The collision causes the two cars to stick together. In what direction and with what speed do they move after…
3. A 1674 kg car going 24 m/s rear ends a 1025 kg compact car going 18m/s on ice in the same direction. The two cars stick together. How fast do the two attached cars move immediately after the collision?
On the axes below, sketch graphs of the velocity and the acceleration of block 2 after block 1 has been removed. Take the time to be zero immediately after block one has been removed.
A uniform cylinder of mass M = 2.7 kg and radius R = 15.0 cm has been attached to two cords and the cords are wound around it and hung from a ceiling as shown in Figure 4. The cylinder is released from rest and the cords unwind as the cylinder descends. A. What is the angular acceleration of…
A bullet is fired horizontally from the top of a cliff that is 20.0m above a long lake. If the muzzle speed of bullet is 500.0m/s how far from the bottom of the cliff does the bullet strike the surface of the lake in meters? Neglect air resistance
1. We can separate three types of radiation from a uranium sample: alpha rays, beta rays, and gamma rays. How did we separate them to determine what they were?
1. How does quantum mechanics affect the structure of the atom? Key words: fermions, quantum numbers, energy shells
calculate the force needed to push wagon up the hill
An object undergoing simple harmonic motion with aperiod T is at the position x = 0 at the time t = 0. At the timet = 0.25T the position of the object is positive. State whether xis positive, negative, or zero at the following times: (a) t = 1.5T,(b) t = 2T, (c) t = 2.25T, and (d) t = 6.75T
Checkpoint 1 A particle undergoing simple harmonic oscillation of period T (like that in Fig: 15-2) is at Xm at time t = 0.Isit at ~xmat +Xm at 0,between ~Xm and 0,or between 0 and +xm when (a) t = 2.00T,(b) t = 3.S0T,and (c) t = 5.25T? Answer: (a) at-Xm (b) at Xm (c) at 0
An aeroplane is flying at a height of 1960 m with a velocity of 720 km/hr. A bag containing food is to dropped to police camp on the ground. How far from there should the bag be released so that it falls directly over them ?
The amount of weight to be placed at Point \( \mathrm{C} \) in order to balance the assembly above is:
You've been hired as a member of a NASCAR racing team. The team has been working to build a new car and the work is nearly complete. In order to tune the engine for maximum performance, the engineering team needs to know the amount of rotational counter-torque produced by the friction in the…
How much heat is required to warm 1.30 L of water from 30.0 ?C to 100.0 ?C? (Assume a density of 1.0g/mL for the water.
How much heat is required to warm 1.30 L of water from 30.0 ?C to 100.0 ?C? (Assume a density of 1.0g/mL for the water.)
torque
The radius of the Earth is 6400 km. A spacecraft orbits the Earth at a height of 1600 km above the Earth’s surface. Find the gravitational acceleration of the spacecraft at this height
Determine the support reactions for the system shown, given the force \( P \) and distributed load (varying between \( w_{1} \) and \( w_{2} \) ) noted below. All dimensions are in millimetres \( (\mathrm{mm}) \).
How fast the ISS (International Space Station) should move in a circular orbit at In order for an 89 kg astronaut to feel an acceleration equivalent to 1 g? Consider that The height of the ISS is 510 km and the radius of the Earth is 6370 km.
b. If you know that the duration of the PR-interval in healthy adult is (0.12 to 0.2 seconds). Does this patient meat the condition?
b. If a patient undergoing a surgery, and doctors use IV saline to sustain patients through surgery. Does the hanging saline bag pressure will be greater than the patient’s blood pressure and why? Also, how you can keep the saline flowing laminar?
a. If a patient suffers from abdominal aortic aneurysm, what is the risk of such condition and how this will affect blood flowing in this vessel?
The figure below shows the position of two balls elastic collision Assume the balls have separating in opposite directions after collision: (40 marks) different magnitudes on thcir perfectly velocities and masses before Indicate the direction of the momentum of_ each ball after collision 10…
Calculate the net torque on the disk of diameter 1 m with respect to an axis passing through the center as shown in the figure. The 15 N force is perpendicular to the edge of the disk, while the 9.50 N force is tangent to the disk.
A 599.56kg box is placed on top of a 18.79° inclined plane with a coefficient of kinetic friction of 0.05. The box is attached to a pulley with a hanging mass of 136.42kg. What is the acceleration of the system? Calculate the tension force on the rope.
The velocity of a 3.00 kg particle is given by v = (8.00tî + 3.00t²ĵ) m/s, with time t in seconds. At the instant the net force on the particle has a magnitude of 35.0 N, what are the direction (relative to the positive direction of the x axis) of (a) the net force and (b) the particle's…
The velocity of a 3.00 kg particle is given by i - (8.00ti + 3.00Pj; m/s, with time / in seconds. At the instant the net force on the particle has a magnitude of 35.0 N, what are the direction (relative to the positive direction of the x axis) of (a) the net force and (b) the particle's…
A force of 160.N parallel to an inclined plane is required to move a 200.N weight up the inclined plane with a constant velocity: Find the coefficient of sliding friction if the plane is indined at 30.0 degrees
How would you derive the final speed of running to force?
How would you derive the final speed of running to force?
How would you get the force in energetics of running?
Solution?
3. A 1674 kg car going 24 m/s rear ends a 1025 kg compact car going 18m/s on ice in the same direction. The two cars stick together. How fast do the two attached cars move immediately after the collision?
A \( 1320 \mathrm{~kg} \) car, C, moving north at \( 30 \mathrm{~m} / \mathrm{s} \), collides with a \( 2200 \mathrm{~kg} \) car, D, moving east at \( 10 \mathrm{~m} / \mathrm{s} \). The collision causes the two cars to stick together. In what direction and with what speed do they move after…
3. A 1674 kg car going 24 m/s rear ends a 1025 kg compact car going 18m/s on ice in the same direction. The two cars stick together. How fast do the two attached cars move immediately after the collision?
A uniform cylinder of mass M = 2.7 kg and radius R = 15.0 cm has been attached to two cords and the cords are wound around it and hung from a ceiling as shown in Figure 4. The cylinder is released from rest and the cords unwind as the cylinder descends. A. What is the angular acceleration of…
A bullet is fired horizontally from the top of a cliff that is 20.0m above a long lake. If the muzzle speed of bullet is 500.0m/s how far from the bottom of the cliff does the bullet strike the surface of the lake in meters? Neglect air resistance
1. We can separate three types of radiation from a uranium sample: alpha rays, beta rays, and gamma rays. How did we separate them to determine what they were?
1. How does quantum mechanics affect the structure of the atom? Key words: fermions, quantum numbers, energy shells
calculate the force needed to push wagon up the hill
An object undergoing simple harmonic motion with aperiod T is at the position x = 0 at the time t = 0. At the timet = 0.25T the position of the object is positive. State whether xis positive, negative, or zero at the following times: (a) t = 1.5T,(b) t = 2T, (c) t = 2.25T, and (d) t = 6.75T
An aeroplane is flying at a height of 1960 m with a velocity of 720 km/hr. A bag containing food is to dropped to police camp on the ground. How far from there should the bag be released so that it falls directly over them ?
You've been hired as a member of a NASCAR racing team. The team has been working to build a new car and the work is nearly complete. In order to tune the engine for maximum performance, the engineering team needs to know the amount of rotational counter-torque produced by the friction in the…