What do I say when commenting on my result?

A feather is dropped onto the surface of the moon. How far will the feather have fallen if it reaches the surface in 9.00 seconds? Given: g on moon = - 1.63 meters/second2

According to Einstein's theory, how does an increase in the number of photons affect a beam of light? The wavelength of the beam of light increases. The speed of the beam of light increases. The brightness of the beam of light increases.

In the process of changing a flat tire, a motorist uses a hydraulic jack. She begins by applying a force of 48 N to the input piston, which has a radius r1. As a result, the output plunger, which has a radius r2, applies a force to the car.

Maria determines that the wavelength of a sound wave is 2.50 meters and that the wave is traveling at 340 m/s. What is the frequency of the sound wave?

If a car increases its speed from 20 mph to 60 mph, by what factor does the kinetic energy of the car increase

How would you find the speed of a ball thrown in to the air - it takes 6 seconds to get tho the top. The height is not given.

If your vision somehow began to increase so that you could see higher and higher frequencies beyond visible light, what type of wave would you be able to perceive first?

Show that the units N/kg can be written using only units of meters (m) and second (s). Is this a unit of mass, acceleration or force.

How do the sun energy flow through the earth system

Which are precautions to take when working with heat and fire?