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A cart of mass m = 1.4 kg is released from the top of a ramp sloped ? = 13° relative to the horizontal. The length of the ramp is L =9.6 m. For such a situation, the acceleration of the cart is a = gsin(?), where we use g = 9.8 m/s2, and the distance traveled along the slope at any given time can be shown to be at2/2 using calculus. Let us set the Gravitational Potential Energy to be 0 at the bottom of the ramp. Find the Gravitational Potential Energy, GPE, and the Kinetic Energy, KE, at the following times: (neglect friction and air resistance)
What is the car's Kinetic Energy at the bottom of the ramp?
Calculate the rates of solar heating
A woman is riding a Jet Ski at a speed of 28.8 m/s and notices a seawall straight ahead, what is the minimum distance from the seawall that she can begin making her turn and still avoid a crash
A train is traveling due west with a velocity of 101.2 mph and then makes a turn to the northwest with a velocity of 95 mph
Find out the change in entropy of the system
A rock is thrown horizontally with a speed of 16 m/s from a vertical cliff of height 32 m, What is the velocity (magnitude and direction counterclockwise from the +x-axis, which is the initial horizontal direction in which the rock was thrown) of t..
An object with a height of 4.0 cm is placed 30.0 cm from a lens. The resulting inverted image has a height of 1.5 cm. What is the focal length of the lens
What are the two types of errors one encounters in experiments? Give an example of each, What does standard deviation of measured data tell you
The temperature of 2.10 kg of water is 34 °C. To cool the water, ice at 0 °C is added to it. The desired final temperature of the water is 11 °C, determine how much mass m of ice should be added.
The fundamental frequency of a pipe that is open at both ends is 598Hz. How long is this pipe
An airplane pilot with a mass of 90.0-kg pulls out of a dive by following the arc of a circle whose radius is 300 m at a constant speed of 190 km/h. find the force exerted on the pilot by the airplane seat
Julie throws a ball to her friend Sarah. The ball leaves Julie's hand a distance 1.5 meters above the ground with an initial speed of 22 m/s at an angle 63 degrees, What is the horizontal and vertical component of the balls
Mary Healy, the young woman with severe vaginal bleeding, is admitted to emergency room. She is three months pregnant, and physician is concerned about the volume of the blood she is losing.
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