Give two examples of events that show that the speed of sound is very much slower than the speed of light

ListenA person weighing 6.0 * 102 newtons rides an elevator upward at an average speed of 3.0 meters per second for 5.0 seconds. How much does this person's gravitational potential energy increase as a result of this ride? a) 3.6 * 102 J b) 1.

Why is nitrogen or helium filled in a filament lamp?

If you are trying to loosen a stubborn screw from a piece of wood with a screwdriver and fail, should you find a screwdriver for which the handle is longer or fatter?

Imagine a 10 KG block moving with a velocity of 30 M/S to the left calculate the kinetic energy of the block

The spring-mounted 0.84-kg collar A oscillates along the horizontal rod, which is rotating at the constant angular rate rad/s. At a certain instant, r is increasing at the rate of 610 mm/s.

What occurs when an unstable atomic nucleus changes into other nuclei by emitting particles and energy

Can a simple machine's efficiency ever be greater than 100%? Explain your answer.

A fishbowl has a circular opening with a diameter of 13 cm. The fishbowl sits upright on a table in a magnetic field of 0.00110 T that is directed downward. What is the flux through the glass of the bowl? -1.5*10^-5 Wb -4.5*10^-4 Wb 0.0 Wb -5.

Why do cars need a cooling system in conjunction with the engine

A runner starts from rest and has an acceleration of 3 m/s2. How fast is she running after 1.1 seconds