What are examples of medium?

What to do if vehicle struck by lightning

With the air density set to 0 kg/m3 (vacuum), what is the relationship between the mass and radius of the ball and its acceleration?

Does earth attracts an astronaut who reside does earth attracts an astronaut who resides in the international space station (the international space station orbits around the earth) ?

Whenever the net force on a moving object is zero its acceleration is

A pump can throw a stream of water up to 29.6m. What is the initial speed of the stream when it leaves a hose nozzle.

A sample of N-type silicon is at the room temperature. When an electric field with a strength of 1000V / cm is applied to the sample, the hole velocity is measured and found to be 2 * 105 cm/sec. a.

Which of the following is a vector quantity? A. 83 ounces of liquid B. 55 km/hr in a truck C. 15 seconds of travel D. 10 m/s down

Which of the following best describes the ultraviolet catastrophe of blackbody radiation? A. As energy is added to an object acting as a blackbody radiator, its emissions move to the ultraviolet part of the electromagnetic spectrum. B.

Is an engine-activated booster unit that reduces the effort required to apply the hydraulic brakes

A box is lowered using a rope. If the acceleration of the box, is 2.5 m/s2 (downward) and the tension in the rope is 31 N, what is the mass of the box (in kg) ?