Physics, 14.04.2020 21:28 jenifferplowman
A rightward force is applied to a 67-kg object to move it across a rough surface at constant velocity. The object encounters 15 N of frictional force. Use the diagram to determine the gravitational force, normal force, net force, and applied force. (Neglect air resistance.)
Answers: 1
Physics, 23.06.2019 02:30
Afaulty model rocket moves in the xy-plane (the positive y direction is vertically upward). the rocket's acceleration has components ax(t) = ? t2 and ay(t) = ? ? ? t, where ? = 2.50 m/s4 , ? = 9.00 m/s2 , and ? = 1.40 m/s3 . at t = 0 the rocket is at the origin and has velocity ~v0 = v0x ? i + v0y ? j with v0x = 1.00 m/s and v0y = 7.00 m/s. (a) calculate the velocity and position vectors as functions of time. (b) what is the maximum height reached by the rocket? (c) sketch the path of the rocket. (d) what is the horizontal displacement of the rocket when it returns to y = 0?
Answers: 1
Physics, 23.06.2019 14:00
What is the potential energy possessed by a rock of mass 4kg projected to a height of 2m (g=10m/s2)
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Physics, 23.06.2019 16:00
Anew product is designed to make plants grow faster. twenty plants are fed the new product and twenty plants are used as a control group. which possible issue might cause an unavoidable error in the study?
Answers: 2
A rightward force is applied to a 67-kg object to move it across a rough surface at constant velocit...
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