A hamster eats a carrot before using its hamster wheel. The hamster wheel is connected to a generator which powers a light bulb. Mechanical → Chemical → Radiant → Electrical

Chemical → Mechanical → Electrical → Radiant

Chemical → Mechanical → Thermal → Electrical

Mechanical → Electrical → Thermal → Radiant

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)

What is a carrier wave and how does it affect what you hear on the radio

An object weigh 40n in air ,weigh 20n when submerged in water,and 30n when submerged in a liquid of unknown liquid density.what is the density of unknown of liquid?