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A 68.1-kg basketball player jumps vertically and leaves the floor with a velocity of 1.92 m/s upward. (Take upward as positive and forward as positive.)
(a) What impulse does the player experience? both mag and direction
(b) What force does the floor exert on the player before the jump? both mag and direction
c) What is the total average force exerted by the floor on the player if the player is in contact with the floor for 0.450 s during the jump? both mag and direction.
A hoop and a disk, both of 0.76- m radius and 3.0- kg mass, are released from the top of an inclined plane 3.0 m high and 7.0 m long. determine the speet of the hoop and disk
Suppose the magnetic field changes uniformly from 0.405 T to 0.220 T in the next 0.684 s. Compute the induced emf in the coil
A thin film of acetone (n = 1.25) coats a thick glass plate (n = 1.50). White light is incident normal to the film. Calculate the thickness of the acetone film
In an ice show a 45.0 kg skater leaps into the air and is caught by an initially stationary 85.0kg skater. What is their final velocity assuming negligible friction and that the leaper's original horizontal velocity was 4.00 m/s
Identical point charges of +3.6 ?C are fixed to diagonally opposite corners of a square. Find the sign and magnitude of the third charge
Two charged spheres are 19 cm apart. They are moved, and the force on each of them is found to have been quadrupled. How far apart are they now.
A toy car of mass 2.0 kg is stationary and a child rolls a truck of mass 3.5kg straight toward it with a speed of 4.0 m/s. What are the velocities of the truck and the car
A rock is dropped from a high tower and falls freely under the influence of gravity. Which one of the following statements concerning the rock as it falls is true? Neglect the effects of air resistance.
A gymnast does a one handed handstand. The humerus, which isthe upper arm bone between the elbow and the shoulder joint, What is the compressional strain of the humerus
In the x-y plane, a point of +2.6 uC is on the x-axis at (-3 cm, 0), and a second point charge of -3.4 uC is also located on the x-axis, Determine the Work required (in keV) to move an electron from Pa to Pb
A 4200 kg truck is parked on a 24° slope. How big is the friction force on the truck
A small ferryboat is 4.00 m wide and 6.00 m long. When a loaded truck pulls onto it, What is the weight of the truck
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