A charge of 0.5 μC is located at A (10,-10,10) (in cm) and a second charge of -0.3 μC is located at B (-10,15,5) (in cm). Find E (Electric Field) at P (15,20,50) (in cm).

Acar travels along a highway with a velocity of 24 m/s, west. the car exits the highway; and 4.0 s later, its instantaneous velocity is 16 m/s, 45° north of west. what is the magnitude of the average acceleration of the car during the four-second interval?

If a spring has a k value of 100 newtons per meter and it is stretched 0.50 meters, what is the restoring force of the spring?

What are similarities and differences between refraction, reflection, diffraction and absorption?