You swing a 2.2 kg stone in a circle with radius 75 cm. At what speed do you need to swing it so its centripetal acceleration will be 9.8 m/s?

2.7 m/s

8.6 m/s

27.1 m/s

7.35 m/s

A particle is moving with a constant speed of 25 m/s in 90 m radius circle what is the angular speed in radian per second about the center of a circle

A.) Why does a lizard's tail grow back?

What is the movement of alternating compressions and rarefactions?

Evaluate the following statement and explain why it is either true or false: If a spacecraft could travel fast enough, it could reach the celestial sphere in about a month.

The gravitational field on the surface of the earth is stronger than that on the surface of the moon. If a rock is transported from the moon to the earth, which properties of the rock change?

A train is accelerating at a rate of 2m/s2. if it's initial velocity is 20 m/s, what is its velocity after 30 seconds

If you have a set of christmas lights that is on a series circuit, predict what would happen if the series circuit were cut off in the middle. how would this differ from what would happen with a parallel circuit?

Prior to the invention of a revolutionary means of travel, people had to take long, dangerous journeys to cross parts of the country. Due to this development, society was revolutionized as travel became safe and efficient.

A 28.5-g object moving to the right at 18.5 cm/s overtakes and collides elastically with a 12.5-g object moving in the same direction at 15.0 cm/s. Find the velocity of each object after the collision. (Take the positive direction to be to the right.

A northfield raider defensive back runs 20 m in 2.5 s what's the average speed