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A juggler's hands are 80 cm apart, and the balls being juggled reach a maximum height of 100 cm above the juggler's hands.
(a) at what velocity do the balls leave the juggler's hands?
(b) If four balls are being juggled, how often must the juggler catch a ball?
A 1 530-kg automobile has a wheel base (the distance between the axles) of 3.30 m. Find the force exerted by the ground on each wheel
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A roller coaster track has a hill with a circular curve of radius r =15 m. What is the normal force on the 60-kg passenger
200 ml of coffee ( density = 1000kg/m^3 , specific heat 4186j/kg C ) is insulated in a mug at a temp of 85C. If 25ml of cream ( density of 1500 kg/ m^3 , specific heat 4500j / kg C at 10 C is added what will be the new temperature of the system?
what is the decrease in entropy of 25.0g of water that condenses on a bathroom mirror at 35C assuming no change in temp and given the latent heat of vap to be 2450KJ/KG
When a train's velocity is 12.0m/s eastward, raindropsthat are falling vertically with respect to the earth make tracesthat are inclined 30degrees to the vertical on the windows of the train, What is the magnitude of the velocity of the raindrop
A 1.65 kg bowling trophy is held at arm's length, a distance of 0.68 m from the shoulder joint. What is the magnitude of the torque applied by the trophy
a an ionization chamber is used with an electrometer capable of measuring 50microa. calculate the rate at which
a model train moves along a horizontal circular track with a radius of 0.5 m. starting from rest the train
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