4. Directions: Complete the "Energy Table" for the roller coaster shown belowMass6500 kgHG.120m120m60m40mFPOINTHEIGHT (m)VELOCITY (m/s)МЕ (J)PE (J)KE (J)A1202032060CD4550000E40FG3000000

Name: 4. Directions: Complete the "Energy Table" for the roller coaster sho
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Description: 4. Directions: Complete the "Energy Table" for the roller coaster shown belowMass6500 kgHG.120m120m60m40mFPOINTHEIGHT (m)VELOCITY (m/s)МЕ (J)PE (J)KE (J)A1202032060CD4550000E40FG3000000

At point A, Mass of the car is m = 6500 kg Height is H = 120 m Kinetic energy is KE = 20320 J The…

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Physics

4. Directions: Complete the "Energy Table" for the roller coaster shown below Mass 6500 kg H %3D G 120m E 120m 60m 40m F POINT HEIGHT (m) VELOCITY (m/s) МЕ () PE (J) KE (J) A 120 20320 60 4550000 E 40 F

4. Directions: Complete the "Energy Table" for the roller coaster shown below Mass 6500 kg H %3D G 120m E 120m 60m 40m F POINT HEIGHT (m) VELOCITY (m/s) МЕ () PE (J) KE (J) A 120 20320 60 4550000 E 40 F

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter7: Work, Energy, And Energy Resources

Section: Chapter Questions

Problem 9PE: Compare the kinetic energy of a 20,000-kg truck moving at 110 km/h with that of an 80.0-kg astronaut...

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Similar questions

A 100-g toy car is propelled by a compressed spring that starts it moving. The car follows the curved track in Figure 7.39. Show that the final speed of the toy car is 0.687 m/s if its initial speed is 2.00 m/s and it coasts up the frictionless slope, gaining 0.180 m in altitude. Figure 7.39 A toy car moves up a sloped track. (credit: Leszek Leszczynski, Flickr)
Compare the kinetic energy of a 20,000-kg truck moving at 110 km/h with that of an 80.0-kg astronaut in orbit moving at 27,500 km/h.
Using energy considerations, calculate the average force a 60.0-kg sprinter exerts backward on the track to accelerate from 2.00 to 8.00 m/s in a distance of 25.0 m, if he encounters a headwind that exerts an average force of 30.0 N against him.
Energy is conventionally measured in Calories as well as in joules. One Calorie in nutrition is 1 kilocalorie, which we define in Chapter 11 as 1 kcal = 4 186 J. Metabolizing 1 gram of fat can release 9.00 kcal. A student decides to try to lose weight by exercising. She plans to run up and down the stairs in a football stadium as fast as she can and as many times as necessary. Is this in itself a practical way to lose weight? To evaluate the program, suppose she runs up a flight of 80 steps, each 0.150 m high, in 65.0 s. For simplicity, ignore the energy she uses in coming down (which is small). Assume that a typical efficiency for human muscles is 20.0%. This means that when your body converts 100 J from metabolizing fat, 20 J goes into doing mechanical work (here, climbing stairs). The remainder goes into internal energy. Assume the students mass is 50.0 kg. (a) How many times must she run the flight of stairs to lose 1 pound of fat? (b) What is her average power output, in watts and in horsepower, as she is running up the stairs?
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If you run down some stairs and stop, what happens to your kinetic energy and your initial gravitational potential energy?
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