A wave has a wavelength of 9 mm and a frequency of 18 hertz. What is its speed?

What happens if different lights are shined through a prism

A boat floats up and down with a time period of 2 seconds as the wave passes under it. What is the frequency?

water is pumped from a stream at the rate of 90kg every 30s and sprayed into a farm at a velocity of 15m/s. Calculate the power of the pump.

Which parts of Dalton's atomic theory had to be revised

In order for work to be done, what three things are necessary? power, a force, and movement in the opposite direction of the applied force balanced forces, motion, and distance covered over time unbalanced force, motion in the same direction as the

Explain what happens to light when it is refracted at the surface of water.

A small car meshes with a large truck in a head-on collision. Which of the following statements concerning the magnitude of the momentum change during the collision is correct? (There could be more than one correct choice.

Consider the following distribution of objects: a 3.00-kg object with its center of gravity at (0, 0) m, a 4.20-kg object at (0, 6.00) m, and a 1.40-kg object at (1.00, 0) m. Where should a fourth object of mass 7.

A Volt/Amp Is Also Known As.?

What's the difference between mass & weight & how they are measured