Mark loves sliding always. He slides at the park with 41° in the down direction. Jim slides on another sliding path with the same Mark sliding angle. Jim spends half the time that Mark needs to slide. Find the friction coefficient?

Four friends, a, b, c, and d are standing varying distances away from a speaker which is producing sound waves.

1which body contains the majority of the mass in the solar system earth jupiter the moon the sun 2 what keeps the objects in the solar system such as planets orbiting around the sun the force of gravity the galaxy exerts on all objects within it including the solar system the great distance between the sun and the planets the sun's nuclear fusion which acts on each object the gravitational force between the sun and each object in the solar system

Does the asteroid belt revolve around the sun?