Astronomers are comparing two stars that are known to have the same luminosity. Star A is observed to be 4 times brighter than star B. How far away is Star A compared to Star B?

If you doubled an object's mass while gravity stays the same, what would happen to the weight?

Which of the following shows the prefixes in order from largest to smallest? centi, deci, nano

What is the role of a carburettor.

Two particles of equal masses are revolving circular path of radius r1 and r2 respectively with the same period. The ratio of their centripetal force is: ... ?

Which statement describes how this example is an application of Newton's laws of motion? According to Newton's first law of motion, the balloon continues moving until the forces on it are balanced.

Which nuclei is not radioactive? A. Am-241 B. Mg-24 C. Pu-241 D. U-238

What is the method of charging used when you run a straw with fur

A man runs at a velocity of 6.2 m/s for 11.5 minutes. When going up and increasingly steep hill, he slows down at a constant rate of 0.25 m/s^2 and comes to a stop. How far did he run?

Find the period and frequency of a green photon that had a wavelength of 525 nm

Match these items. 1 . involuntary muscle tissues that have fibers 2 . tendons muscle controlled by will 3 . cardiac muscle muscle not controlled by will 4 . voluntary muscle arm muscle 5 . biceps heart muscle