Astudent attaches a rope to a 20.0 kg box of books. he pulls with a force of 90.0 n at an angle of 30 degrees with the horizontal. to make his job easier, he oiled the bottom of the box, reducing the coefficient of friction to 0.250. what is the magnitude of the acceleration of the box?
Answers: 1
Physics, 21.06.2019 17:20
Write maxwell's equations and discuss the terms involved and the results of each equation in classical electrodynamics. if it is possible to write these equations in integral form, give the integral forms. find the wave equation for electromagnetic waves from the maxwell equations. what is the propagation velocity of electromagnetic waves in space according to the wave equation you find?
Answers: 3
Physics, 22.06.2019 17:40
Aspring is used to stop a 50-kg package which is moving down a 20º incline. the spring has a constant k = 30 kn/m and is held by cables so that it is initially compressed 50 mm. knowing that the velocity of the package is 2 m/s when it is 8 m from the spring and neglecting friction, determine the maximum additional deformation of the spring in bringing the package to rest.
Answers: 1
Physics, 22.06.2019 20:00
Using the free-body diagram, calculate the net force acting on the sled. is the sled in a state of dynamic equilibrium?
Answers: 3
Astudent attaches a rope to a 20.0 kg box of books. he pulls with a force of 90.0 n at an angle of 3...
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