Answer:570.54 N
Explanation:
Given
mass of man=76 kg

As man is standing over inclined building therefore
its weight has two components i.e. sin and cos component
Force perpendicular to inclined wall

F=570.54 N
Answer: they have the same magnitude.
Explanation:
normal force = mg
weight = mg
Thermal energy is the force of the kinetic and potential energies of all particles in an object