The human eye is very sensitive to light having a wavelength of 5.51 ✕ 10-7 m, which is in the green-yellow region of the visible electromagnetic spectrum. What is the frequency of this light?

An input force of 7 n is applied to a machine with a mechanical advantage of 1.75. what is the maximum the machine could lift? 12.25 n7n7.25 n26.2 n

The 5-kg cylinder is initially at rest when it is placed in contact with the wall b and the rotor at a. if the rotor always maintains a constant clockwise angular velocity v = 6 rad> s, determine the initial angular acceleration of the cylinder. the coefficient of kinetic friction at the contacting surfaces b and c is mk = 0.2.

Aball is thrown horizontally from a cliff at 8m/s .in what direction is the ball moving 2s later?