Just after the fan is turned on, the motor gives the blade an angular acceleration α= (20e-0.6t) rad/s2, where t is in seconds. determine the speed of the tip p of one of the blades when t = 3 seconds. how many revolutions has the blade turned in 3 seconds? when t = 0, the blade is at rest.

When you turn on a battery-operated device, an electrical circuit is

Identify the theory that can be used to explain each phenomenon. answers diffraction: wave theory interference: wave theory reflection: both particle and wave theories refraction: both particle and wave theories

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].