What is the force in N of an object that has a mass of 7 kilograms and an acceleration of 4 m/s/s

Form of energy that exhibits wavelength behavior as it travels through space. Example: Mircrowave rays, U. V. rays.

If an object undergoes a change in momentum of 10 kg m/s in 3 seconds what is the force?

Comets travel around the sun in elliptical orbits with large eccentricities. If a comet has speed 2.1*104 m/s when at a distance of 2.5*1011 m from the center of the sun, what is its speed when at a distance of 4.9*1010 m.

A small glass bead has been charged to + 30.0 nC. A small metal ball bearing 2.60 cm above the bead feels a 1.80*10-2 N downward electric force. Part A What is the charge on the ball bearing? Express your answer with the appropriate units.

We can use the Doppler Effect to study the movements of far away stars and galaxies. True False

When a fork is placed in a hot piece of lasagna, thermal energy is transferred up the fork by ...

Levi observed properties of four different waves and recorded observations about each one in his chart.

A rocket is shot straight up from the earth, with a net acceleration (acceleration by the rocket engine minus gravitational pullback) of during the initial stage of flight until the engine cut out at sec.

Which moon has a thick atmosphere made mostly of nitrogen?

J. J Thompson proposed that atoms were made up of positively charged particles with electrons scattered into them. How did he reach this conclusion?