How do you find velocity

A group of a few thousand stars that are loosely held together by gravity is called a

Calculate the de broglie wavelength (in picometers) of a hydrogen atom traveling at 425 m/s.

Which area of earth is most similar to the suns convention zone

What class of solids is made up of regularly repeating subunits of tightly packed, orderly arrangements of atoms, ions, or molecules?

2. A Formula One race car speeds up from rest to 27.8 m/s in a distance of 25 meters. Determine the acceleration achieved by the car.

How does an electromagnetic wave propagate itself? a. A changing magnetic field induces an electric field perpendicular to the magnetic field. b. A changing electric field induces a magnetic field perpendicular to the electric field. c.

Which of the following is an example of convection? A. hot air rising and cooler air falling B. a hot object transferring heat to a cooler one C. a hot oven warming the air around it D. the rays of the Sun warming the earth

A 50,000 kg locomotive is traveling at 10 m/s when its engine and brakes both fail. How far will the locomotive roll before it comes to a stop? Assume the track is level.

A rectangular loop of wire with sides 0.262 and 0.401 m lies in a plane perpendicular to a constant magnetic field (see part a of the drawing). The magnetic field has a magnitude of 0.

In the system you're inspecting the damper motor isn't working, You decide to see if the damper-postion sensor us sending the proper signal to the which then signals the damper motor. A. heating coil B. duckwork c. energy source D. controller