Which part of the EM spectrum is used in night vision goggles?

You are sitting on a merry-go-round of mass 200 kg and radius 2m that is at rest (not spinning). Your mass is 50 kg. Your friend pushes the edge of the merry go round with 100 N of force, applied at a 90 deg angle.

A 30 ton rail car and a 90 ton rail car, initially at rest, are connected together with a giant but massless compressed springbetween them. When released, the 30 ton car is pushed away at aspeed of 4.0 m/s relative to the 90 ton car.

If a force is exerted on an object, is it possible for that object to be moving with constant velocity?

Which atom is most likely to accept electrons to form an ionic bond?

What is the best analogy for the doppler effect?

Because light travels in a straight line and casts a shadow, Isaac Newton hypothesized that light is

The suspension cable of a 1,000 kg elevator snaps, sending the elevator moving downward through its shaft. The emergency brakes of the elevator stop the elevator shortly before it reaches the bottom of the shaft.

P*V = n*R*T where P = pressure V = volume n = number of moles R = the universal gas constant T = temperature in degrees Kelvin This equation is known as the ideal gas law, and it can be used to predict the behavior of many gases at relatively low

Scientific notation for 3134000000

When a constant force acts on an object, what does the object's change in momentum depend upon? check all that apply. check all that apply. the change in momentum depends upon the change in the velocity of the object.