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- I'm trying to understand the different types of energies. I understand the definitions, but when I apply them to situations, it doesn't make much sense to me. I have the following: A. Entrophy - measure of the amt of disorder, or randomness in a system B. Kinetic Energy - Energy in Motion C. Heat - kinetic energy contained in the random motion of atoms & molecules D. Chemical Energy - type of potential energy which arises from the arrangement of atoms and be release in chemical reactions E. Conservation of Energy: Kinetic to Potential Energy - its not possible to destroy or create energy F. Conservation of Energy: Potential to Kinetic G. Potential Energy - Energy an object has because of its location or structure When I try to apply to the following, I come up with this: A: A Glass falls off the shelf & breaks B. An orange falling from a tree C. During exercise you get extremely hot. D Animals consume food (organic molecules) to make ATP to walk, breathe, etc. E. A large…Suppose that the speed that a fish can swim depends on the 3/2 power of the length of the fish. Also suppose that that a herring with the length of 0.30 meters swims at a speed of 1.67 m/s. a)Find the particular equation showing the relationship between swimming speed and length for this herring b)An 800kg roller coaster traveling at 10m/s is 80m above the bottom of the track. a. How fast is the roller coaster car traveling at the bottom of the hill? b. How fast is the roller coaster car traveling at the top of the loop?
- 4. A 6.00 Kg iron ball moves at 2.75 m/s. How fast must a 2.65 g steal ball move so that the two balls have the same kinetic energy?An object that measured a mass of 0.89 kg started moving at a speed of 3.89 m/s. After some time, the speed increased to 6.25 m/s. What was the kinetic energy when the object reached the higher speed? b. What was the net work done by the object?1. A block of mass m is pushed against (but not attached to) a spring with stiffness k so that the spring is compressed a distance Ar. When released, the block slides across the frictionless surface of a shelf a height h above the floor, the then falls to the floor. a. What is the speed of the block at the moment it leaves the shelf? V2 = b. What is the speed of the block at the moment just before it hits the ground? Vr =
- A spring rests at a length of 0.5 m and is pulled to a length of 2 m. It has a spring constant of 3 N/m. What is the Eel of the spring when stretched?A brick has a mass of 1.3kg. It is dropped (from rest) from a height of 18.8m. What is the speed of the brick when it hits the ground? Your Answer:A railroad car, with a mass of 12,500kg, collides with a stationary 9700kg railroad car. Upon collision they stick together. After the collision, they are traveling at 1.05m/s. What is the initial speed of the first car before the collision?