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A 0.75 kg cart has been attached to a spring. The cart is moved to the right by 2.0 cm. Find the spring constant. What is the elastic potential energy stored in the spring? Does this energy depend on the mass of the cart?
Suppose you were performing the same experiment on this crate but were doing it on the moon instead, where the acceleration due to gravity is 1.62 m/s squared. What magnitude push would cause it to move? What will be its acceleration if you maintaine..
The change in specific enthalpy during the melting of ice at 0 degrees C and 1.01 X 10^5 Pa is ?h= 333.39 kj/kg. find the change in entropy of reservoir and universe
A mountain climber gains 897 m in elevation on a particular hike. Consider the climber's body as a heat engine, how much heat does the food supply
A proposed space station includes living quarters in a circular ring 60.5 m in diameter. At what angular speed should the ring rotate
For the arrangement shown in the figure below, an object is placed 0.37 m in front of the converging lens, which has a focal length of 0.17 m. where is the final image formed
A 62-kg skier speeds down a trail. The surface is smooth and inclined at an angle of 22 with the horizontal. Determine the normal force acting on the skier
She pumps the handle up and down, slowly lifting the car. What is the force exerted on the small piston during each downward stroke?
The gravitational force between two masses M and m seperated by a distance r is 40 N. What is the new force when this distance is halved
What intensity level of the horn's sound is observed by somebody waiting at an intersection 58m from the train.
A Carnot engine whose high-temperature reservoir is at 680K takes in 570J of heat at this temperature in each cycle and gives up 350J to the low-temperature reservoir. What is the temperature of the low-temperature reservoir
A blue ball is thrown upward with an initial speed of 24.3 m/s, from a height of 1 meters above the ground. What is the speed of the blue ball when it reaches its maximum height
A Carnot engine has an efficiency of 0.361, and the temperature of its cold reservoir is 406 K. (a) Determine the temperature of its hot reservoir. (b) If 5950 J of heat is rejected to the cold reservoir, what amount of heat is put into the engine..
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