Physics, 05.11.2019 03:31, katekatdawsonke3863
Starting from rest, a 2.1x10^-4 kg flea springs straight upward. while the flea is pushing off from the ground, the ground exerts an average upward force of 0.41 n on it. this force does 3.7x10^-4 j of work on the flea.
(a) what is the flea's speed when it leaves the ground?
(b) how far upward does the flea move while it is pushing off? ignore both air resistance and the flea's weight.
Answers: 1
Physics, 22.06.2019 01:20, Kjcampbell2
Your target variable is δf, the magnitude of the difference in frequency between the waves emitted from the sonar device and the waves received by the device after reflecting off the whale. write an expression for δf in terms of the relevant frequencies using the subscript notation introduced above.
Answers: 3
Physics, 22.06.2019 08:30, fernandoramirez086
Does anyone know how to solve this problem? i really need . i made an attempt but i just cant get it. a metal rod is 25.000 cm long at 25.0 degrees celsius. when heated to 102.0 degrees celsius, it is 25.054 cm long. what is the coefficient of linear expansion for this metal.
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Physics, 22.06.2019 11:30, cristianc52
If we relied solely on the nonrenewable resources found in the u. s., which one would we run out of first at current usage levels? a. natural gas b. oil c. uranium d. coal
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Starting from rest, a 2.1x10^-4 kg flea springs straight upward. while the flea is pushing off from...
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