Physics, 25.12.2019 05:31 genyjoannerubiera
Afootball player at practice pushes a 60 kg blocking sled across the field at a constant speed. the coefficient of kinetic friction between the grass and the sled is 0.30.
how much force must he apply to the sled?
a. 18 n
b. 60 n
c. 180 n
d. 600 n
Answers: 2
Physics, 22.06.2019 02:00
The image shows a pendulum in simple harmonic motion the pendulum starts at a and swing to e
Answers: 1
Physics, 22.06.2019 11:50
Amoving electron has kinetic energy k1. after a net amount of work w has been done on it, the electron is moving one-quarter as fast in the opposite direction. (a) find w in terms of k1. (b) does your answer depend on the final direction of the electron's motion?
Answers: 2
Physics, 22.06.2019 19:00
Friction removes energy from objects in motion. which statement best describes how this works? a) friction transforms ke into thermal energy b) friction transfers thermal energy to ke c) friction transforms te into pe d) friction transforms pe into ke e) friction transfers ke into pe
Answers: 1
Afootball player at practice pushes a 60 kg blocking sled across the field at a constant speed. the...
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