Acar radio draws 0.27 a of current in the autos 12-v electrical system. (a) how much electric power does the radio use?
(b) what is the effective resistance of the radio?

Which diagram correctly demonstrates the various forces acting on a ball moving horizontally with some speed?

James is trying to prove newton's 2nd law of motion. he tries to move four different objects with different masses, shapes, and sizes from point a to point b. the objects are a toy car, a car, a refrigerator, and a kitchen table. after some experimentation, he finds that force is dependent on the mass of the object, rather than it's size or shape. the object that takes the most force to move is the

The least penetrating form of radiation is