Awave has a wavelength of 45 meters and a period of 9.0 seconds. what is the frequency of the wave?

The correct answer is 0.11 Hz.

Explanation:

The relation between frequency of the wave and time period is as follows;

Here, f is the frequency of the wave and T is the time period.

Here, the frequency is inversely proportional to the time period.

It is given in the problem that a wave has a wavelength of 45 meters and a period of 9.0 seconds.

Calculate the frequency of the wave.

Put T= 9 s.

f=0.11 Hz

Therefore, the frequency of the wave is 0.11 Hz.

a small object of mass 3.66 g and charge -17.6 µc is suspended motionless above the ground when immersed in a uniform electric field perpendicular to the ground. what are the magnitude and direction of the electric field?

that would be because of both gravity and friction. so     c