A boy is twirling a model airplane on a string 4 feet long. if he twirls the plane at 0.25 revolutions per minute, how far does the plane travel in 4 minutes? round to the nearest tenth.

When the track is covered with the cloth, will the cart's braking distance become longer or shorter?

Are sound waves transverse waves or longitudinal waves? Why?

1) Earth's. is currently tilted to about 23.5 degrees

Cart A, with a mass of 0.4 kg, travels on a horizontal air track at 6 m/s and hits cart B, which has a mass of 0.8 kg and is initially at rest.

Explain how scientific knowledge develops through making observations about the natural world. Answer: Scientific knowledge develops through making observations about the natural world.

The Congo River is in Africa. True or False

A painter lifts a 3 kg can of paint 3 m above the floor. How much work was done?

Under what conditions is energy conserved

To practice problem-solving strategy 5.2 dynamics problems. a 30.0-kg box is being pulled across a carpeted floor by a horizontal force of 230 n, against a friction force of 210 n. what is the acceleration of the box

What are the processes in which materials move through a cell membrane?