An object is vibrating with a frequency of 1.7x 10^13 Hz and has an amplitude of 0.8x 10^-12 m, calculate
a) The object maximum speed?
b) The object maximum acceleration?

What is the weight of a feather (mass = 0.0001 kg) that floats through earth's and the moon's atmospheres?

Asled is being held at rest on a slope that makes an angle θ with the horizontal. after the sled is released, it slidesa distance d1 down the slope and then covers the distance d2 alongthe horizontal terrain before stopping. find the coefficient ofkinetic friction μk between the sled and the ground, assumingthat it is constant throughout the trip. find the coefficient of kinetic frictionμk. express your answer in terms of someor all of the variables d1, d2, and θ.

Abumper car with a mass of 250 kg is traveling at a speed of 4 m/s. this bumper car collides and sticks to a second bumper car with a mass of 250 kg, which is initially at rest. what is the final speed of these two bumper cars after the collision, assuming they remain stuck together?