Im pretty sure I know which one just makin sure This is for my sister

is the body's normal reaction to help the body return to a more stable temperature when a person is really cold.

pacing

walking

shivering

freezing

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.)

Which is not true about oxygen-17 and oxygen-18?

What is the angular momentum of the bar about the axle?