4a. how high is a 12 kg monkey in a tree if it has 509 j of gravitational potential energy?

b. assuming no energy loss due to friction, what are his gpe, ke and velocity at a point 2.0 meters above ground as it falls.

4A. PE = MxGxH. (You can consider g as 9.8 / 10m/s as well)

509 J = 12x10xH

509 J = 120xH

H = 509/120

H = 4.24 m

Hope u got the answerpls rate the answer if it is helpful for uand I'm sorry I could not understand B part so I didn't do it.

Thank you

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(ii) size of the scattering particle  

(iii) distance traveled by light through the atmosphere.

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hence at sunrise and sunset, the sky appears reddish orange.