secondary schoolphysics13 pointstwo discs of 250 mm diameter are placed 1.5 mm apart and the gap is filled with an oil. a power of 500 w is required to rotate the upper disc at 500 rpm while keeping the lower one stationary. determine the viscosity of the oil.

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