A 10,000-watt radio station transmits at 535 kHz. Calculate the energy of a single photon at the transmitted frequency.

A)3.55 × 10-28 J/photon

B)3.55 × 10-31 J/photon

C)6.63 × 10-30 J/photon

Explain why the aperture of the spherical mirror should be small compared to the radius of curvature of the mirror.

Abird sitting high in a tree is an example of what type of wnergy

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?