the intensity of a black body is given by 2hc2 1 derive wien's law: naxt-0.29 cm k

In a system, when potential energy decreases, then entropy also decreases. true false

Acrow drops a 0.11kg clam onto a rocky beach from a height of 9.8m. what is the kinetic energy of the clam when it is 5.0m above the ground? what is its speed at that point?

Explain why electric current cannot exist if a current doesn't have a voltage source.