In a bell jar experiment, the student hangs the electric bell by using a spring. Explain why.​

Will give brainliest! jay rides his 2.0-kg skateboard. he is moving at speed 5.8 m/s when he pushes off the board and continues to move forward in the air at 5.4 m/s. the board now goes forward at 13 m/s.a. determine jay’s mass.b. determine the change in the internal energy of the system during this process.(express your answer to two significant figures and include the appropriate units.)

Amira pulls a 3 pound wagon 4 feet. how much work has she done?

In a series circuit the __ is the same at every point