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(a) A bungee jumper with mass 52.0 kg reaches a speed of 13.5 m/s moving straight down when the elastic cord tied to her feet starts pulling her back up. After 0.0250 s, the jumper is heading back up at a speed of 10.7 m/s. What is the average force that the bungee cord exerts on the jumper?
(b) What is the average number of g's that the jumper experiences during this direction change?
Illustrate what is the maximum height of each ball after the elastic collision? What are the coordinates of the CM of the two balls when the lighter ball was pulled up? Consider the heavier ball to be at the origin before the collision.
The British gold sovereign coin is an alloy of gold and copper having a total mass of 7.988 g, and is 22-karat gold. Calculate the density of the British sovereign coin
A ballplayer standing at homeplate hits a baseball that is caught by another player at the same height above the ground from which it was hit. The ball is hit with an initial velocity of 21 m/s at an angle of 54° above horizontal.
Resistance and potential difference in an electrical circuit.
Two hockey players strike a puck of mass 0.169 kg with their sticks simultaneously, exerting forces of 1.25 103 N, Find the instantaneous acceleration of the puck
A 0.600 kg block is attached to a spring with spring constant 18 N/m. While the block is sitting at rest, What is the amplitude of the subsequent oscillations
A woman once survived a fall of over six miles without a parachute when her plane exploded. What is this distance in meters
Regarding the Earth and a cloud layer 800 m above the earth as the "plates" of a capacitor, calculate the capacitance. What is the maximum charge the cloud can hold
600g model rocket is on a cart that is rolling to the right at a speed of 4.5m/s. At what horizontal distance left of the loop should you launch
You plan to project an inverted image 30.0 cm to the right of an object. You have a diverging lens with focal length -4.00 cm located 5.40 cm to the right of the object. What is the focal length of the second lens
A 21kg solid door is 220 cm tall, 92cm wide, What is the door's moment of inertia for rotation about a vertical axis inside the door, 13cm from one edge
The model airplane in Figure 5.7 is flying at a speed of 14.4 m/s on a horizontal circle of radius 17.2 m. The mass of the plane is 1.19 kg. What is the net work done on the plane
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