The drawing shows identical stones that are being whirled on a tabletop at the same speed. the radius of the larger circle is twice that of the smaller circle. how is the tension t1 in the longer cord related to the tension t2 in the shorter cord?

Pls pls pls pls ! describe, in your own words, how you found the epicenter of the earthquake.

Imagine you are riding on a yacht in the ocean and traveling at 20 mph. you then hit a golf ball at 100 mph from the deck of the yacht. you see the ball move away from you at 100mph, while a person standing on a near by beach would observe your golf ball traveling at 120 mph (20 mph + 100 mph). now imagine you are aboard the hermes spacecraft traveling at 0.1c (1/10 the speed of light) past mars and shine a laser from the front of the ship. you would see the light traveling at c (the speed of light) away from your ship. according to einstein’s special relativity, how fast will a person on mars observe the light to be traveling? a) 0.1c (1/10 the speed of light) b) c (the speed of light) c)1.1c (c+0.1c)

The two required components for a generator are