A car drives by a restaurant at a constant linear speed.

Derive an expression of the angular speed 0 (x) of the car with
respet to the restaurant as a function of its speed v and the distances R and x, as shown in the figure.

Derive an expression of the angular acceleration of the car a (x) with respect to the restaurant as a function of the
distance x.

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?

Phase changes are chemical changes. true or false

More solar radiation is absorbed by earth’s surface than by