A 2000 kg car with a 250 HP (1.865 X 105 W) engine accelerates from rest. If all the engine’s power is used to change the car’s speed during the entire trip, how much time does it take for the car to reach 100 mph (44.7 m/s)? Group of answer choices 4.81 s 15.1 s 10.7 s 6.78 s

A farmer is using a rope and pulley to lift a bucket of water from the bottom of a well that is hy = 9.5 m deep. The farmer uses a force F1 = 59.5 N to pull the bucket of water directly upwards. The total mass of the bucket of water is mb + mw = 3.1 kg. a.Calculate how much work Wf in J the farmer does on the bucket of water (via the rope) to raise it to ground level.  b.Calculate how much work Wg in J gravity does on the bucket filled with water as the farmer lifts it up the well.  c. Calculate the net work Wnet in J done on the bucket of water by the two forces F1 and Fg.

A car has an engine that produces constant power. The car is accelerated from rest at t = 0, and at t = t0 the acceleration is a0. What is the acceleration of the car at = 4t0?

Please don't provide handwritten solution.....

C @ 2 W S F2 (Figure 1) is the kinetic-energy graph for a 2.0 kg object moving along the x-axis. # 3 E D F3 $ 4 R F4 F % 5 T G F5 6 Y H F6 & 7 U COL * 8 J F8 9 K DELL O ww 20 < Part A P Determine the work done on the object during each of the four intervals AB, BC, CD, and DE Express your answers using one significant figure. Enter your answers numerically separated by a comma. WB WBC. WCD. WDE= Submit < Return to Assignment X Incorrect: Try Again: 5 attempts remaining F10 [ ? | W Previous Answers Request Answer F11 m IVO ΑΣΦ 1 F12 Provide Feedback ► Backspace Insert Print Screen Enter Delete Shift Ctrl Home Scroll Lock End Review | Constants PgUp → O Pause Break PgDn ? 7:09 PM 11/6/2023 + Num Lock 7 J 2 Home 4 1 LO 5 End

The work required by Neymar to push a box of soccer balls on a horizontal, frictionless floor to accelerate it from a speed of zero to v is W1. The work required by Neymar to accelerate the box of soccer balls on the same floor, from v to 2v is W2. The ratio of W2 to W1 is   The correct answer is 3 but I don't know how they got to that answer

A 2000 kg car with a 250 HP (1.865 X 105 W) engine accelerates from rest. If all the engine’s power is used to change the car’s speed during the entire trip, how much time does it take for the car to reach 100 mph (44.7 m/s)? Group of answer choices 10.7 s 4.81 s 6.78 s 15.1 s

A 58 kg student traveling in a car with a constant velocity has a kinetic energy of 1.7 x 104 J. What is the speedometer reading of the car in km/h? km/h

44. A force of 200 N is required to keep an object sliding at a constant speed of 2 m/s across a rough floor. How much power is being expended to maintain this motion? 50 W 100 W 200 W 400 W

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