What's the unit for mass

What do diffraction and refraction have in common? pick only one They both involve interference. They both involve wave interactions. They both involve reflection. They both involve construction.

What instrument mesures weather data from the upper atmosphere

35m/s west can be an answer in velocity true or false

What would happen if the distance between the Earth and the moon decreased?

What factors contribute to global winds

G=fr²/m, m² where G is the gravitational constant "r" is the distance between two masses "m" and "m²" and "f" is the gravitational force between two masses

Which of the following is not a practical application of gravity? O A. It keeps the moon in orbit around Earth. O B. The moon has no gravity because it has no atmosphere. O C. It keeps the galaxies from flying apart. O D.

Bumper of a stationary bumper car. The momentum of the stationary car increases. Which happens to the momentum of the moving bumper car? It decreases. It stays the same. It is converted to inertia.

An electric field has a strength of 2.0 N/C. What force does it exert on a charge of 0.004 C?

Given that earth orbits at 150,000,000 km from the sun, through what distance does earth move in a second?