The package has a weight of 5 lb and slides down the chute. When it reaches the curved portion AB, it is traveling at 8 ft>s (u = 0). If the chute is smooth, determine the speed of the package when it reaches the intermediate point C (u = 30) and when it reaches the horizontal plane (u = 45). Also, find the normal force on the package at C.

How much heat is required to convert 0.3 kg of ice at 0°c to water at the same temperature

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)

Which transition by an electron will release the greatest amount of energy? oa ob oc od