A3.5 kg block slides along a frictionless horizontal with a speed of 2.5 m/s. after sliding a distance of 5 m, the block makes a smooth transition to a frictionless ramp inclined at an angle of 50â—¦ to the horizontal. the acceleration of gravity is 9.81 m/s 2 .

The coulomb's law explains which of the following? select all the force between two charged objects is inversely proportional to the charge on each object. the force between two charged objects is directly proportional to the charge on each object. the force between two charged objects is directly proportional to the distance separating them. the force between two charged objects is inversely proportional to the square of the distance separat coulomb's law is similar to newton's 2nd law. if the force between two objects is f and the charge on both objects is doubled, the new force between the would now be 2f. if the force between two objects is 2f and the distance separating them is doubled, the new force between the objects would now o the be zf.

An object's buoyant force and weight mean the same thing.a. trueb. false

You throw a small rock straight up from the edge of a highway bridge that crosses a river. the rock passes you on its way down, 7.00 s after it was thrown. what is the speed of the rock just before it reaches the water 28.0 m below the point where the rock left your hand? ignore air resistance.