A refrigerator is 3cm by 3cm by 6cm wat is the volume of the refrigerator?

Which type of wave can travel without a medium

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

You hang a book bag on a spring scale and place the bag on a platform scale so that the platform scale reads 23.7n and the spring scale reads 13.8n. what is the magnitude of the force that earth exerts on the bag?