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A basketball of mass 0.624 kg is shot from a vertical height of 1.65 m and at a speed of 19.3 m/s. After reaching its maximum height, the ball moves into the hoop on its downward path, at 3.05 m above the ground. Using the principle of energy conservation, determine how fast the ball is moving just before it enters the hoop.
Find the charge-to-mass ratio of an unknown point charge that is repelled strongly enough from a single electron to be suspended motionless against its own weight
The magnetic field in the region between the poles of an electromagnet is uniform at any time, but is increasing at the rate of 0.060 T/s. What is the magnitude of the induced emf
The equation of a transverse wave on a string is y = (2.0 mm) sin[(19 m-1)x - (625 s-1)t]. The tension in the string is 11 N. Find the linear density of this string
A proton with v = 322 m/s is moving through a region in which the magnetic field is B = 2.2 T, what angle does the protons velocity make with B
An aluminum rod of length l has a resistance of .8 ohms. Half of the rod is machined down so that half of the rod now has half of the radius of the original radius. What will be the new resistance
What is the total work W_fric completed on the block by the force of friction as the block moves a distance 8 rm m up the incline.
A circular wire loop, with a single turn, has a radius of 14.0 cm. The loop is in a magnetic field that is decreasing at the rate of 0.500 T/s. determine the magnitude of the emf induced in the loop
Suppose you throw a rock from an initial height h0 at a speed v0 and angle ? from the horizontal. Neglect drag or friction, Determine the coordinate system and draw a diagram of the trajectory. Draw the free-body diagram and find the net force
A popcorn kernal initially at rest, explodes into two peices, one haveing twice the mass of the other. What is the ration of velocities of the frgament
A 70kg block is pushed 5m up an incline against a friction force of 50N. The block is pushed to a height 1m above the ground. How much work is done by the person on the block
An object weighting 100N is traveling vertically upward from the ground in the absence of air resistance at a constant velocity of 5 m/s
A 102g Frisbee is 25cm in diameter and has half its mass spread uniformly in the disk and the other half concentrated in the rim. What is the Frisbee's rotational inertia
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