Four objects A, B, C, and D with different masses are initially at rest at different heights above the ground as shown below. Object Mass (kg) Height (m) A 0.80 B C 0.50 0.10 15 25 20 D 0.25 30 Each mass is allowed to fall to the ground, and air resistance is negligible. Rank the kinetic energies with which the objects fall to the ground, from highest to lowest. [Show work for credit]
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Q: See image attached. Thanks!
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- For a certain run, the following data is obtained when filling up Table 2 of the manual: Mass of cart = 600 g, hanging mass = 33 g, distance travelled by the cart = 49 cm, initial speed of the cart = 0.38 m/s, Final speed of the cart = 0.8 m/s, Calculate the percent difference between change in potential energy and change in Kinetic Energy.A toy rocket with a mass of 389 grams is launched into the air using a spring. At position A in the diagram below, the height is 5.4 metres and the velocity is 5.9 m/s. What is the potential energy (in J) of the rocket at this location [round your final answer to one decimal place]?A ball is launched directly upwards from the ground. At max height, the ball has a gravitational potential energy of 200 J. If the ball the ball has a mass of 4 kg, then what was the initial velocity of the ball? Report your answer in units of meters per second (m/s) but only write down the number part.
- If the 0.15 kg apple in Q3 falls, and all its gravitational potential energy is converted into kinetic energy, how fast will it be moving when it hits the ground? (If you didn’t answer 3, assume initial Eg = 5.0 J.)Alissa dropped a ball from a height of 2000 mm. Find out (a) how long it will take to hit the ground and (b) what would be its velocity when it hits the ground? (c) If mass of the ball is 500 g, what would be its kinetic energy when it hits the ground? (d) What would be its potential energy before its fall?A toy rocket with a mass of 399 grams is launched into the air using a spring. At position A in the diagram below, the height is 5.2 metres and the velocity is 9.8 m/s. What is the potential energy (in J) of the rocket at this location [round your final answer to one decimal place]? В C A hB hc hA
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