Fleas have remarkable jumping ability. a 0.55 mg flea, jumping straight up, would reach a height of 30 cm if there were no air resistance. in reality, air resistance limits the height to 20 cm .
part a : what is the flea's kinetic energy as it leaves the ground? express your answer to two significant figures and include the appropriate units.
part b: at its highest point, what fraction of the initial kinetic energy has been converted to potential energy? express your answer using two significant figures.
Answers: 2
Another question on Physics
Physics, 21.06.2019 17:30
Acatapult is tested by roman legionnaires. they tabulate the results in a papyrus and 2000 years later the archaeological team reads (distances translated into modern units): range = 0.4 km; angle of launch = π/5 rad; landing height = launch height. what is the initial velocity of launch of the boulders if air resistance is negligible?
Answers: 3
Physics, 22.06.2019 06:10
Which transition by an electron will release the greatest amount of energy? oa ob oc od
Answers: 2
Physics, 22.06.2019 06:30
What is the energy of a photon of ultraviolet radiation with a frequency of 4.4 × 1015 hz? planck’s constant is 6.63 × 10–34
Answers: 3
Physics, 22.06.2019 09:40
When you jump from an elevated position you usually bend your knees upon reaching the ground. by doing this, you make the time of the impact about 10 times as great as for a stiff-legged landing. in this way the average force your body experiences is a) less than 1/10 as great. b) more than 1/10 as great. c) about 1/10 as great.d) about 10 times as great.
Answers: 1
You know the right answer?
Fleas have remarkable jumping ability. a 0.55 mg flea, jumping straight up, would reach a height of...
Questions
Geography, 07.01.2020 22:31
Mathematics, 07.01.2020 22:31
Physics, 07.01.2020 22:31
History, 07.01.2020 22:31
History, 07.01.2020 22:31
Mathematics, 07.01.2020 22:31
Geography, 07.01.2020 22:31
Mathematics, 07.01.2020 22:31
English, 07.01.2020 22:31
Chemistry, 07.01.2020 22:31
