Who is doing work.
A Becky studies for her test. B Bob carries a baby across the hall C sally pushes a stroller around the block D Ben holds a plank for one minute

Aparticle travels in a circular orbit of radius 21 m. its speed is changing at a rate of 23.1 m/s2 at an instant when its speed is 37.2 m/s. what is the magnitude of the acceleration (in m/s? ) of the particle?

Which radioisotope is used in dating geological formations?

Aperson touches a large chunk of ice with their hand and remarks, “this is making me cold.” explain what this person is feeling. is the ice transferring “cold” to the person? is there a heat transfer occurring? explain.