A34.34 g sample of a substance is initially at 26.7 °c. after absorbing 2205 j of heat, the temperature of the substance is 152.1 °c. what is the specific heat (c) of the substance?

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?