You push a 100 kg wheeled (frictionless) cart across a floor a distance of 13 m by applying a force of 10 N in 9 seconds. Calculate the power associated with the applied force. O O 1.111 Watt 14.444 J/s 1444.4 J/s 1000 J/s 90 Watts None of these are correct.

A 700 kgkg elevator accelerates upward at 1.4 m/s2m/s2 for 14 mm, starting from rest. A. How much work does gravity do on the elevator? Express your answer with the appropriate units. B. How much work does the tension in the elevator cable do on the elevator? Express your answer with the appropriate units. C.What is the elevator's kinetic energy after traveling 14 mm? Express your answer with the appropriate units.

Power of the Human Heart. The human heart is a powerful and extremely reliable pump. Each day it takes in and discharges about 7500 L of blood. Assume that the work done by the heart is equal to the work required to lift this amount of blood a height equal to 1.5 m. The density (mass per unit volume) of blood is 1050 kg/m3 . What is the heart's power output. Use g = 9.8m/s2 Calculate answer to one decimal.

If a ski lift raises 150 passengers averaging 690 N in weight to a height of 126 m in 45.9 s, at constant speed, what average power is required of the force making the lift? Number i 270096 eTextbook and Media Units W

24. A skier of mass 70 kg is pulled up a slope by a motor-driven cable. How many horsepower output must a motor have to pull him 100 m up a 30° frictionless slope at a constant speed of 2 m/s? a.700 b. 0.94 c. 746 d. 1.06 a b d

Strictly don't use chatgpt. I need a handwritten solution only

A. Find friction. B. Find Gravity.

The force required to compress a non-standard spring as a function of displacement from equilibrium x is given by the equation F(x) = ax2 - bx, where a = 65 N/m2, b = 4 N/m, and the positive x direction is in the compression direction of the spring.a. Write a general equation in terms of the given variable for the work required to compress this spring from equilibrium to any point xp.

Practice 1. Which of the following represents the relationship between work, power, and time? Choices P = W/t W = P/t P = W×t t = W×P 2.  A machine does 2500 J of work in 1 min. What is the power developed by the machine? Choices 21 W 42 W 150 W 2500 W 3. What is the average power output of a weightlifter who can lift 250 kg weights 2.0 m in 2.0 s? Choices 2.5 kW 5.0 ×  102 W 4.9 kW 9.8 kW

A model train powered by an electric motor accelerates from rest to 0.520 m/s in 23.0 ms. The total mass of the train is 660 g. What is the average power (in W) delivered to the train by the motor during its acceleration? 3.056 How is the work done related to the change in kinetic energy? What is the initial kinetic energy? How is kinetic energy related to speed? How is power related to work and time? Be careful of units. W Need Help? Read It