A laptop computer adapter has a voltage of 19 V it has a resistance of 4.0 Ω the adapter gets warm when operating determine the current going through the adapter

The graph describes the motion of an object. the object moves with from a to b. it from b to c. it moves with from c to d.

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

Which of these is constant for all types of electromagnetic radiation in a vacuum? select one: a. wavelength b. frequency c. photon energy d. amplitude e. velocity