Calculate the force with which the moon pulls every kilogram of water in narayani river given that the moon is 3 X 10 to the power 5 km away from Nepal and the mass of the moon is 7 X 10 to the power 22 k

Aperson stands on a platform, initially at rest, that can rotate freely without friction. the moment of inertia of the person plus the platform is ip. the person holds a spinning bicycle wheel with its axis horizontal. the wheel has moment of inertia iw and angular velocity ωw. take the ωw direction counterclockwise when viewed from above. part a what will be the angular velocity ωp of the platform if the person moves the axis of the wheel so that it points vertically upward?

Why does gravity have a lesser than grater effect on higher altitudes?

Describe the three ray tracing steps used to identify an image for the given situation.