What is the potential energy of a 2000 N bell at the top of a 20 m tower? 100 Joules

40, 000 Nm

400, 000 J

4000 Joules

the duration of a photographic flash is related to an rc time constant, which is 0.100 μs for a certain camera.

hi,

what occurs during a solar eclipse?

there are small tides across earth.

the moon is between earth and the sun.

p.s. im not sure if the first answer is correct because during a solar ecliphse there are spring tides and i dont know if they are the same.

report!

explanation:

physics means: "the branch of science concerned with the nature and properties of matter and energy. the subject matter of physics, distinguished from that of chemistry and biology, includes mechanics, heat, light and other radiation, sound, electricity, magnetism, and the structure of atoms."