- #1
LoriAnn
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Hey, any ideas/input would be very helpful! Thanks!
1. It is sometimes said that water is removed from clothes during the spin cycle by centrifugal force throwing the water outward. Explain if this is correct by describing what centrifugal force is and how the spin cycle helps "dry out" the clothes.
2. It is said that in ancient times a rich man with a bag of gold coins froze to death stranded on the surface of a frozen lake. Because the ice was frictionless, he could not push himself to shore. What could he have done to save himself had he not been so miserly?
3. A proton and an electron are held in place on the x axis. The proton is at x = -d, while the electron is at x = +d. They are released simultaneously, and the only force that affects their motions is the electrostatic force of attraction between them. Which particle reaches the origin first? Give your reasoning.
4. A particle is oscillating in simple harmonic motion. The time required for the particle to travel through one complete cycle is equal to the period of the motion, no matter what the amplitude is. But how can this be, since larger amplitudes mean that the particle travels further? Explain in terms of energy.
1. It is sometimes said that water is removed from clothes during the spin cycle by centrifugal force throwing the water outward. Explain if this is correct by describing what centrifugal force is and how the spin cycle helps "dry out" the clothes.
2. It is said that in ancient times a rich man with a bag of gold coins froze to death stranded on the surface of a frozen lake. Because the ice was frictionless, he could not push himself to shore. What could he have done to save himself had he not been so miserly?
3. A proton and an electron are held in place on the x axis. The proton is at x = -d, while the electron is at x = +d. They are released simultaneously, and the only force that affects their motions is the electrostatic force of attraction between them. Which particle reaches the origin first? Give your reasoning.
4. A particle is oscillating in simple harmonic motion. The time required for the particle to travel through one complete cycle is equal to the period of the motion, no matter what the amplitude is. But how can this be, since larger amplitudes mean that the particle travels further? Explain in terms of energy.