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An arrangement of two pulleys, as shown in the figure, is used to lift a 46.0-kg mass a distance of 3.20 m above the starting point. Assume the pulleys and rope are ideal and that all rope sections are essentially vertical.
a) What is the change in the potential energy of the weight when it is lifted a distance of 3.20 m?
b) How much work must be done to lift the 46.0-kg mass a distance of 3.20 m?
A 70-kg man and a 55-kg woman holding a 2.50-kg purse on ice skates stand facing each other. What is the woman's recoil speed
A 1.2m -long, 900g rope pulls a 9.0kg block of ice across a horizontal, frictionless surface. The block accelerates at 1.0m/s^2, How much force pulls forward on the block of ice
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An RCL circuit connected in series has R=180 ohms, C=1/280 farad, L=20 henries, and an applied voltage E(t)=10sin(t). find the subsequent charge on the capacitor
Consider three non-interacting particles each of which has three accessible quantum states. Determine the possible states for this system if the particles are fermions
The multiplicity for a particular system is ?= exp(N^2V^3U^1/2/?), What is the system's entropy, temperature, chemical potential, pressure and heat capacity at constant volume
A spring-loaded gun, fired vertically, shoots a marble 9.2 straight up in the air. What is the marble's range if it is fired horizontally from 2.3 above the ground
A rectangular loop of wire with length L = 29.5 cm and width W = 16.7 cm carries a current I1 = 1.92 A. What is the magnitude of the net force on the loop
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