7. Radio waves, visible light, and x-rays are examples of electromagnetic waves that always differ from each other in A amplitude B. intensity C. temperature D. wavelength

Aray diagram for a refracted light day is shown. what does the dashed line represent

Aparticle initially moving east with a speed of 20.0 m/s, experiences an acceleration of 3.95 m/s, north for a time of 8.00 s. what was the speed of the particle after this acceleration, in units of m/s? give the answer as a positive number.

If an athlete runs once around a track, back to the starting line, her average velocity is zero. true or false?