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GJ

Greg J.

Algebra

2 minutes ago

Solve the inequality. 5x-7?18

MW

Mallori W.

Precalculus

8 hours ago

where P0 is the actual pitch of the whistle at the source and s0 = 332 m/s is the speed of sound in air. Suppose that a train has a whistle pitched at P0 = 350 Hz.

MW

Mallori W.

Precalculus

8 hours ago

where P0 is the actual pitch of the whistle at the source and s0 = 332 m/s is the speed of sound in air. Suppose that a train has a whistle pitched at P0 = 350 Hz.

GE

Gigi E.

Chemistry 101

8 hours ago

A 0.40-kg object whose initial temperature is 500^0C is dropped into a bucket containing 20kg of water at 22^0C. If the final equilibrium temperature is 23^0C, find the specific heat of the object. specific heat capacity of water is 4184 \frac{J}{kg^0C}

KK

Kamran K.

Macroeconomics

8 hours ago

Your bank account pays an interest rate of 10 percent. You are considering buying a share of stock in Global Corporation for Rs110. After 1 and 2 years, it will pay a dividend of Rs10. You expect to sell the stock after 2 years for Rs130. Which option would you like to choose? Support your answer with calculations.

GS

Guadalupe S.

Physics 103

12 hours ago

A car drives on a highway with a speed of 71 mi/h.

hh

Hhh H.

Physics 103

12 hours ago

An object moves at a constant speed of 8.0 m/s in a 5.0 m radius circle. What is the object's acceleration?

SB

Screnny B.

Biology

13 hours ago

why does intense deforestation and reduction of photosynthetic biomass potentially increase the rate of global warming?

BJ

Brianna J.

Physics 101 Mechanics

15 hours ago

Starting from rest what force will be required to cause a 2500 kg car to exit a quarter mile long tunnel in 1.5 minutes?

TJ

Taylor J.

Physics 101 Mechanics

15 hours ago

Help plz, how do i solve?

TJ

Taylor J.

Physics 101 Mechanics

15 hours ago

How do i find my answer?

TJ

Taylor J.

Physics 101 Mechanics

15 hours ago

How would i solve this?

TJ

Taylor J.

Physics 101 Mechanics

15 hours ago

Sorry to do it this way but there's too much I'm lost on..

TJ

Taylor J.

Physics 101 Mechanics

15 hours ago

I'm very lost, i got 3 tho!

TJ

Taylor J.

Physics 101 Mechanics

15 hours ago

A 1.4-mole sample of an ideal gas at initial; volume 34 L is allowed to expand at a constant temperature of 280 K. The gas perform on its container is 1.7 kJ. Let the ideal-gas constant R = 8.314 J/(mol • K). what is the final volume of the gas? 44L 48L 62L 57L

TJ

Taylor J.

Physics 101 Mechanics

16 hours ago

A 3.8 mole sample of an ideal gas is gently heated at constant temperature 340 K. the gas expands to 2.3 times its initial volume. what is the change in the energy of the gas? let the ideal gas constant R= 8.314/ (mole* K).

DL

Douaneng L.

Physics 103

17 hours ago

Review. A block with a speed bolted to it is connected to a spring having spring constant k=20.0N/m and oscillates as shown in Figure P16.41. The total mass of the block and speaker is 5.00kg, and the amplitude of this unit's motion is 0.500m. The speaker emits sound waves of frequency 440Hz. Determine (a) the highest and (b) the lowest frequencies heard by the the person to the right of the speaker. (c) If the maximum sound level heard by the person is 60.0dB when the speaker is at its closest distance d=1.00m from him, what is the minimum sound level heard by the observer?

DL

Douaneng L.

Physics 103

17 hours ago

Submarine A travels horizontally at 11.0m/s through ocean water. It emits a sonar signal of frequency f=5.27×103Hz in the forward direction. Submarine B is in front of submarine A and traveling at 3.00m/s relative to the water in the same direction as submarine A. A crewman in submarine B uses his equipment to detect the sound waves ("pings") from submarine A. We wish to determine what is heard by the crewman in submarine B. (a) An observer on which submarine detects a frequency f' as described by Equation 6.46? (b) In Equation 6.46, should the sign of vS be positive or negative? (c) In Equation 16.46, should the sign of vO be positive or negative? (d) In Equation 16.46, what speed of sound should be used? (e) Find the frequency of the sound detected by the crewman on submarine B.

MI

Mehmet I.

Physics 103

17 hours ago

Problem 4 (15 points) A 4 ???????? chunk of ice is sliding to the right at 20 ????/???? in a frictionless floor completely covered with ice. After a while, this moving chunk of ice collides with another 4 ???????? chunk of ice which is at rest and sticks to it. (a) After the collision, how high above the floor will the combined chunks go? (b) Which quantities are conserved in this problem? Explain.

MI

Mehmet I.

Physics 101 Mechanics

17 hours ago

Problem 4 (15 points) A 4 ???????? chunk of ice is sliding to the right at 20 ????/???? in a frictionless floor completely covered with ice. After a while, this moving chunk of ice collides with another 4 ???????? chunk of ice which is at rest and sticks to it. (a) After the collision, how high above the floor will the combined chunks go? (b) Which quantities are conserved in this problem? Explain.

MI

Mehmet I.

Physics 101 Mechanics

17 hours ago

Problem 4 (15 points) A 4 ???????? chunk of ice is sliding to the right at 20 ????/???? in a frictionless floor completely covered with ice. After a while, this moving chunk of ice collides with another 4 ???????? chunk of ice which is at rest and sticks to it. (a) After the collision, how high above the floor will the combined chunks go? (b) Which quantities are conserved in this problem? Explain.

MW

Mallori W.

Precalculus

18 hours ago

A drug is administered to a patient, and the concentration of the drug in the bloodstream is monitored. At time t ? 0 (in hours since giving the drug), the concentration (in mg/L) is given by c(t) = 9t t2 + 1 .

AS

Ayma S.

Algebra

18 hours ago

Find the area of a triangle bounded by the y-axis, the line f(x)= 10-2x , and the line perpendicular to f that passes through the origin.

av

Ala V.

Physics 101 Mechanics

20 hours ago

Romeo (77.0 kg) entertains Juliet (55,0 kg) by playing his guitar from the rear of their boat at rest in still water, 2.70 m away from Julici who is in the front of the boat, After the serenade. Juliet carefully moves to the rear of the boat (away from shore) to plant a kiss on Romeo's cheek. How far does the 80.0-kg boat move toward the shore it is facing

av

Ala V.

Physics 101 Mechanics

20 hours ago

romeo 77 kg entertaints juliet 55kg by playing his guitar from the rear of the boat

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