6. A bullet moves with a velocity of 600 m/s and has gained a kinetic energy of 900 J. Compute its mass.a. 9 x 102 kgb. 5 x 103 kgc. 4 x 104 kgd. 6 x 10° kgFor numbers 7 to 9A force of 800N stretches a certain spring a distance of 0.200 m.7. What is the force constant?a. 4000 N/mb. 800 N/mc. 2000 N/md. 1000 N/m e What is the potential energy of the spring when it is stretched 0.200 m?a. 50 Jс. 80Jb. 70Jd. 90 J9. What is its potential energy when it is compressed 5.00 cm?а. 5 Jс. Оd. 10 Jb. 7J10. A 2 kg ball falls freely from a height of 3 m. What is its kinetic energy in joules when it hits theground?а. 20.3 Jс. 62.7 Jb. 58.8 Jd. 1000 J11. The potential energy gained by a 50 000 kg train after climbing a 20 m hill isа. 1.0 х 10° kgb. 2.5 x 106 kgc. 5.0 x 106 kgd. 9.8 x 106 kg12. A man of mass 50 kg jumps to a height of 1 m. His potential energy at the highest point is (g = 10m/s? )%3Da. 50 Jc. 500 Jb. 60 Jd. 600 J13. A 1 kg mass has a kinetic energy of 1 joule when its speed isa. 0.45 m/sb. 1 m/sс. 1.4 m/sd. 4.4 m/s14. An object of mass 1 kg has potential energy of 1 joule relative to the ground when it is at a height ofa. 0.102 mc. 9.8 mb. 1 md. 32 m15. A body of mass 2 kg is dropped from a height of 1 m. Its kinetic energy as it touches the ground isа. 19.6 Nb. 19.6 Jc. 19.6 kgd. 19.6 m

Answered: Image /qna-images/answer/1a600e77-5b4a-41e7-b7f1-acbb55491791.jpg

6. A bullet moves with a velocity of 600 m/s and has gained a kinetic energy of 900 J. Compute its mass. a. 9 x 102 kg b. 5 x 103 kg c. 4 x 104 kg d. 6 x 10° kg For numbers 7 to 9 A force of 800N stretches a certain spring a distance of 0.200 m. 7. What is the force constant? a. 4000 N/m b. 800 N/m c. 2000 N/m d. 1000 N/m

6. A bullet moves with a velocity of 600 m/s and has gained a kinetic energy of 900 J. Compute its mass. a. 9 x 102 kg b. 5 x 103 kg c. 4 x 104 kg d. 6 x 10° kg For numbers 7 to 9 A force of 800N stretches a certain spring a distance of 0.200 m. 7. What is the force constant? a. 4000 N/m b. 800 N/m c. 2000 N/m d. 1000 N/m

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 10PE: (a) How fast must a 3000-kg elephant move to have the same kinetic energy as a 65.0-kg sprinter...

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