The potential energy of a 45 kg cannon ball is 15000 J. How high was the cannon ball to have this much potential energy?

33.3

Explanation:

Potential energy =

mass × gravitational field strength × height

rearranged =

(The earths gravitational field strength will always be 10)

=33.33333 recurring to 1dp its 33.3

a) electrical > light, sound, and thermal< < < <

) the mechanical energy of the firefighter moving.< < < < a) electrical > light, sound, and thermal< < < <

c) both a and b.

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."