Compare the force an abrupt
Compare the force an abrupt(hard) and a cushioned (soft) collision if the impulse are equivalent. use word and also sketch the force vs. time graphs.
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Explain why radioactivity can be used as a "clock" to measure the march of geologic time.
A .280 kg croquet ball makes an elastic head on collision with a second ball initially at rest. The second ball moves off with half the original speed of the first ball. What is the mass of the second ball? What fraction of the original kinetic en
An isotope of the element Thallium, Tl-206, undergoes beta decay with a half life of 3.1 minutes. Assume you begin with 1.0 grams of the thallium isotope, what mass of the isotope will be left after 9.3 minutes have elapsed?
A golf ball is struck with a five iron on level ground. It lands 92.4 away 4.20 later. What was (a) the direction and (b) the magnitude of the initial velocity
A spy in a speed boat is being chased down a river by government officials in a faster craft. Just as the officials' boat pulls up next to the spy's boat, both reach the edge of a 5.1 m waterfall. If the spy's speed is 19 m/s and the officials' sp
Tarzan tries to cross a river by swinging from one bank to the other on a vine that is 10.7 m long. His speed at the bottom of the swing, just as he clears the surface of the river, is 8.7 m/s. Tarzan does not know that the vine has a breaking st
A coil with inductance 7.0 H and resistance 26.0 Ω is suddenly connected across an ideal 110.0 V battery by the closing of a switch. a) What is the equilibrium current?
Find the frictional force exerted on block A given that the mass of block A is 8.80 kg, the mass of block B is 2.48 kg, and the coefficient of static friction between block A and the surface on which it rests is 0.320.
A constant horizontal force then acts on the box, and accelerates it to the right. It is observed that it takes the box 6.5 seconds to travel 48 meters. What is the magnitude of the force?
If 2200kg of water goes through the generator in 5s, how much power is generated? Assume that the acceleration due to gravity is 10m/s2.
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