Physics, 15.10.2019 02:20 ringo12384
Acube of mass m1 = 7.7 kg is sitting on top of another cube of the same size and mass m2 = 1.4 kg while they are both in free-fall. ignoring any air resistance, what is the magnitude of the normal force with which the bottom cube is acting on the top cube?
Answers: 2
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What happens to light waves from a star as the star moves away from earth?
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Physics, 22.06.2019 01:20
An engineer designs a roller coaster so that a car travels horizontally for 152 ft, then climbs 137 ft at an angle of 34.0° above the horizontal. it then moves 137 ft at an angle of 48.0° below the horizontal. if we take the initial horizontal motion of the car to be along the +x-axis, what is the car's displacement? (give the magnitude of your answer, in ft, to at least four significant figures and give the direction of your answer in degrees counterclockwise from the +x-axis.)
Answers: 1
Physics, 22.06.2019 11:00
Alarge box of mass m is pulled across a horizontal frictionless surface by a horizontal rope with tension t. a small box of mass m sits on top of the large box. the coefficients of static and
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Physics, 22.06.2019 12:00
Aboat radioed a distress call to a coast guard station. at the time of the call, a vector a from the station to the boat had a magnitude of 45.0 km and was directed 15.0° east of north. a vector from the station to the point where the boat was later found is = 30.0 km, 15.0° north of east. what are the components of the vector from the point where the distress call was made to point where the boat was found? in other words, what are the components of vector c = b - a?
Answers: 3
Acube of mass m1 = 7.7 kg is sitting on top of another cube of the same size and mass m2 = 1.4 kg wh...
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