Two balls of equal mass at the bottom of an incline are rolled upward without slipping at the same initial velocity. one ball is solid and the other is a thin-walled hollow ball. which rolls higher up the incline before coming to a stop?

Using the given data table, calculate the acceleration of the skateboarder. you can use either form of the equation below?

Copper has free electrons per cubic meter. a 71.0-cm length of 12-gauge copper wire that is 2.05 mm in diameter carries 4.85 a of current. (a) how much time does it take for an electron to travel the length of the wire? (b) repeat part (a) for 6-gauge copper wire (diameter 4.12 mm) of the same length that carries the same current. (c) generally speaking, how does changing the diameter of a wire that carries a given amount of current affect the drift velocity of the electrons in the wire?

Crowbar of 5 metre is used to lift an object of 800 metre if the effort arm is 200cm calculate the force applied