What do we need to measure in order to determine a star's luminosity?

Mass of rifle is 6kg, mass of bullet is 0.01kg travelling at 350m/s what is the velocity

The average speed of a person in driving to school is 30 km/h. on the return trip along with the same route, the average speed is 25km/h. what is the average speed for the round trip to the school

Which statement describes Newton's law of universal gravitation? Mass has little effect on gravity between objects. Gravity pushes objects away from Earth's center. Gravity does not act between Earth and the moon.

Describe common objects found in the Solar System including: The Sun, Earth, Planets, Moons, Asteroids, And Comets.

True or False:A wind is a horizontal movement of air from an area of high pressure to an area of lower pressure.

What is the net force in the x-direction? 30 N 34 N 55 N 65 N

If an object does not have domains, will it be possible to make it magnetic?

If the loop is then converted into a rectangular loop measuring 2.1cm on its shortest side in 6.50ms, and the average emf induced across the loop is 14.7V during this time period, what is A. the strength of the B-field

Why would you expect to see similar rocks and rock structures on two land masses that were connected at one time?

A quantity that is ignorant of direction is referred to as a