A roller coaster car speed is 4 m/s, but 3 seconds later its speed is 22 m/s. What is its average acceleration?

What is the heaviest element that a star can produce through fusion, before going supernova?

The coefficient of kinetic friction between a suitcase and the floor is 0.272. You may want to review (Pages 196 - 203). Part A If the suitcase has a mass of 80.0 kg, how far can it be pushed across the level floor with 660 J of work

An x-ray photon is scattered by an originally stationary electron. how does the frequency of the scattered photon compare relative to the frequency of the incident photon? it is lower.

How much energy is imparted to an electron as it flows through a 6 V battery from the positive to the negative terminal? Express your answer in attojoules.

A rock is dropped into a well hits the water in 5 secs. if there is no air resistance, what would be the rocks final speed?

Birds, squirrels, and chipmunks all living in the same tree, using the same resources, are an example of:

Does air resistence decrease with speed

In one area, the lowest angle of elevation of the sun in winter is 23 ° 18 '. Find the minimum distance, x, that a plant needing full sun can be placed from a fence 4.63 ft high.

A wave has a wavelength of 50 m and a speed of 200 m/s. What is the frequency of this wave in hertz?

A 75.0 kg person stands on a scale in an elevator. (a) What does the scale read (in N and in kg) when the elevator is at rest?