What do scientists call a substance that forms during a chemical reaction

Name three different units of energy used to measure heat and describe what type of situations each is usually used.

How much energy will be transferred to your eardrum while listening to this sound for 1.0 min?

Why does the equilibrium position of the spring change when a mass is added to the spring? will the mass oscillate around the new equilibrium position of the spring or the previous position without a mass attached to the spring? if the equilibrium position of the spring changes by 20 cm (assuming no initial mass) when a mass is added to the spring with constant 4.9 kg/s^2, what is the mass of the object attached to the spring?