Maddie and juan's were given to task of trying to cook a s'more using the sun! they built this oven using a box and aluminum foil. after setting up the device, they put four s'mores in the box. ten minutes later the s'mores were hot and ready to eat. describe the energy transformation that took place in the students' oven. a) solar energy to heat energy eliminate b) solar energy to light energy c) reflected energy to heat energy d) light energy to mechanical energy

Which type of wave can travel without a medium

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)

Two pans of a balance are 24.1 cm apart. the fulcrum of the balance has been shifted 1.33 cm away from the center by a dishonest shopkeeper. by what percentage is the true weight of the goods being marked up by the shopkeeper? assume the balance has negligible mass. answer in units of %.