Can reflection occur for all waves?

What are possible units of speed and velocity

A meter stick sits on a pivot. You place 4 nuts 10 cm away from the pivot. Where would you place a single nut to make the meter stick balance?

An object is moving at 5 m/s and a height of 4m. If the object has a mass of 5kg what is it mechanical energy

You drive on Interstate 10 from San Antonio to Houston, half the time at 72 km/h and the other half at 98 km/h. On the way back you travel half the distance at 72 km/h and the other half at 98 km/h.

Most of the earth's atmosphere is composed of which of the following two gases a. Carbon Dioxide b. Nitrogen and Oxygen c. Nitrogen and Carbon Dioxide d. Methane and Argon

If your at the mall with your friends and they shoplift what would you do

Fluid is leaking from an axle seal. Technician A says to remove the wheel and check for incorrectly installed brake components. Technician B says to check for obstructions at the differential breather.

All matter we encounter in everyday life exists in one of three physical formss True or False.

15 grams of liquid plastic are frozen in a physical change that increases the volume. What can be known about the plastic after the change?

A Car is lifted a certain distance in a service station and therefore has potential energy relative to the floor. if it was lifted twice as high, how much potential energy would it have?