Physics, 28.03.2020 23:28, munekalove69ounxwv
A girl is sitting in a sled sliding horizontally along some snow (there is friction present).
The normal force supporting the girl and sled is 636 N.
If the coefficient of static friction is 0.38, and the coefficient of kinetic friction between snow and sled is 0.25, what is the force of friction exerted on the sled?
Answers: 3
Physics, 21.06.2019 18:10, montgomerykarloxc24x
Awheelhas a radius of 4.8 m. howfar (path length) does a point on the circumference travel if thewheel is rotated through angles of 30°, 30 rad, and 30 rev, respectively?
Answers: 3
Physics, 22.06.2019 10:40, rainbowboi
As you are trying to move a heavy box of mass m, you realize that it is too heavy for you to lift by yourself. there is no one around to , so you attach an ideal pulley to the box and a massless rope to the ceiling, which you wrap around the pulley. you pull up on the rope to lift the box. use g for the magnitude of the acceleration due to gravity and neglect friction forces. once you have pulled hard enough to start the box moving upward, what is the magnitude f of the upward force you must apply to the rope to start raising the box with constant velocity? express the magnitude of the force in terms of m, the mass of the box.
Answers: 1
Physics, 23.06.2019 17:30, Redeyestudio53
This lab will not "work" for some people - they won't be able to collect a clump of dna for their necklace. explain how it is possible to have actually extracted dna from your cheek cells, yet at the end of the lab procedures, it is not obviously visible.
Answers: 2
A girl is sitting in a sled sliding horizontally along some snow (there is friction present).
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Mathematics, 23.07.2019 00:10
Mathematics, 23.07.2019 00:10
Mathematics, 23.07.2019 00:10