What do am radio, fm radio, television, and cell phones have in common?

they were all invented in the same year.

they were all invented by the same scientist.

they all use specific frequencies of radio waves to which electronic signals are encoded.

Aman throws a football straight into the air. as it rises, it slows down. which type of energy is the football gaining?

1. how to locate the image in converging(concave) mirror and diverging (convex) mirror with salt. 2. how to locate the image in a converging (convex) lens and diverging (concave) lens with salt.

The scalar triple product computes the magnitude m of the moment of a force vector f about a specified line. it is m = (r × f) · n, where r is the position vector from the line to the point of application of the force and n is a unit vector in the direction of the line. use matlab to compute the magnitude m for the case where f = [12, −5, 4] n, r = [−3, 5, 2] m, and n = [6, 5, −7].