A student sits on a stool rotating with angular speed while holding two equal heavy bricks at arm's length of the two brekes
are dropped, what is the student's angular speed ie angler
momentum conserved? Explain your answer​

Awave is produced in a rope. the wave has a speed of 33 m/s and a frequency of 22 hz.

What is the temperature in degrees celsius of a substance with a tempature of 49k

1. jay fills a wagon with sand (about 20 kg) and pulls it with a rope 30 m along the beach. he holds the rope 25° above the horizontal. the rope exerts a 20-n tension force on the wagon. how much work does the rope do on the wagon?