Physics, 16.03.2020 23:58, bianca7183
A factory worker pushes a 30.0-kg crate a distance of 4.5 m along a level floor at constant velocity (zero acceleration) by pushing horizontally on it. The coefficient of kinetic friction between the crate and the floor is 0.25. (a) What magnitude of force must the worker apply? (b) How much work is done on the crate by this force? (c) How much work is done on the crate by friction? (d) How much work is done on the crate by the normal force? By gravity? (e) What is the total work done on the crate?
Answers: 2
Physics, 22.06.2019 12:10, anaroles04
Light traveling in water, nwater = 1.33, strikes a plastic block at an angle of incidence of 51.4°; part of the beam is reflected and part is refracted. if the index of refraction of the plastic is 2.0, what is the angle made by the reflected and refracted beams?
Answers: 2
A factory worker pushes a 30.0-kg crate a distance of 4.5 m along a level floor at constant velocity...
Mathematics, 23.11.2019 01:31
English, 23.11.2019 01:31
Physics, 23.11.2019 01:31
Social Studies, 23.11.2019 01:31