Explain how wavelength, frequancy and energy changes in the electromagnetic spectrum

50 g of ice at 0°c is dropped in a beaker containing 100 g of water at 0°c. what will be the contents of the beaker after 5 hours? assume that the room temperature is 0°c.

What are similarities and differences between refraction, reflection, diffraction and absorption?

When you hold a rectangular object, how does the area of the side that is resting on your hand affect the pressure and the force that the object exerts?