A group of two or more stars is called a A. solar system B. neutron star C. protostar D. star system

How are motors and generators different?

When a battery is connected to a lightbulb properly, current flows through the lightbulb and makes it glow. How much current flows through the battery compared with the lightbulb?

The largest and smallest slits in these experiments are 0.16mm and 0.04mm wide, respectively. The wavelength of the laser light is 650nm. How many wavelengthswide are these slits?

Superman used X-ray vision to detect objects. Aside from a source of X-rays, what else would be needed for X-ray vision?

A small metal sphere has a mass of 0.14 g and a charge of - 22.0 nc. it is 10 cm directly above an identical sphere with the same charge. this lower sphere is fixed and cannot move.

What is the specific heat of wood?

A certain wave motion has a frequency of 10 cycles / s and a wavelength of 3 m. so its propagation speed is

The planet earth orbits around the sun and also spins around its own axis. 33% part (a) calculate the angular momentum of the earth in its orbit around the sun in kg • m2/s

An electron experiences a magnetic force of magnitude 4.60 x 10^-15 N when moving at an angle of 60.0° with respect to a magnetic field of magnitude 3.50 x 10^-3 T. Find the speed of the electron.

If you jump vertically while inside a fast-moving train that is slowing down, you land: a. a bit behind your original position. b. at your original position. c. a bit ahead of your original position.