An object that has what acting on it acts as if there were no forces acting on it at all

Your roommate is working on his bicycle and has the bike upside down. He spins the 60 cm diameter wheel, and a pebble in the tread goes by 3 times every second. what is the pebbles speed and acceleration?

Which would be best categorized as heat transfer by conduction

A block oscillating on a spring has period t = 3.0 s. note: you do not know values for either m or k. do not assume any particular values for them. the required analysis involves thinking about ratios.

How would the force of Earth's gravity change if a satellite were to orbit at a distance that was only 1/2 of its original orbit? A. It cannot be determined. B. The force of gravity would increase. C. The force of gravity would not change. D.

Which of the following terms describes one's ability to understand how another person is feeling? empathy appreciation cooperation commitment

A 16.0 kg canoe moving to the left at 12.5 m/s makes an elastic head-on collision with a 14.0 kg raft moving to the right at 16.0 m/s. After the collision, the raft moves to the left at 14.4 m/s. Disregard any effects of the water.

How many significant figures does the number 91010.0 have?

Convert 9.75 millimeters to centimeters.

A 4357 kg roller coaster car starts from rest at the top of a 36.5 m high track. determine the speed of the car at the top of a loop that is 10.8 m high

A person runs at a speed of 4 meters per second. How far will the person travel in 40 seconds?