Determining the spring constant problem
A 1000 kg safe is held 2 m above a heavy duty spring when the rope holding it breaks. The safe compresses the spring 50 cm. What is the spring constant?
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If, instead, the gold is drawn out into a cylindrical fiber of radius 2.700 µm, what is the length (in m) of the fiber?
Assuming that an axon can be treated like a parallel plate capacitor with a plate area of 6.50 x 10^-6 m2, what is its capacitance?
How far downstream will the swimmer be upon reaching the other side of the river?
At the 18th green of the U.S. Open you need to make a 22.0 ft putt to win the tournament. When you hit the ball, giving it an initial speed of 1.62 m/s, it stops 5.95 ft short of the hole. Assuming the deceleration caused by the grass is constant,
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(a) How much charge is on the surface of an isolated spherical conductor that has a 10.0-cm radius and is charged to 2.00 kV? (b) What is the electrostatic potential energy of this conductor? (Assume the potential is zero far from the sphere.)
Find the change in kinetic energy of the system of two vehicles for the situations of part (a) and part (b). For which situation is the changein kinetic energy grater in magnitude?
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