Question
Particle A of mass 500g is moving with a constant velocity of 12m s^-1 towards particle B of mass 1.5kg which is initially at rest. After collision, particle A comes to a rest and particle B moves ...
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General Physics 3 years 1 Answer 1361 views

Question
Shouldn’t they stop with time? I mean go ahead and shake a bottle of water, it will shake and it will eventually stop, unless you shake it again. What makes the sea water move so much? Why doesn’t ...
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General Physics 3 years 1 Answer 1271 views

Question
In conservation of momentum, a system of two objects starting with zero momentum, one of the objects is caused to move in one direction. The other object will move in the opposite direction. According to Newton’s first ...
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General Physics 3 years 1 Answer 545 views

Question
Can anyone tell me the most BASIC, and watered down rundown of string theory? Pretend you’re telling a random off the street that doesn’t know anything past 11th grade physics.
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General Physics 3 years 1 Answer 474 views

Question
The position of a particle is given by x = bt – f t^3 where b and f are positive constants. x is in meters, t is in seconds. What are the units of b and f? There ...
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General Physics 3 years 1 Answer 428 views

Question
Two sections of a train track are 1 mile each. They are attached to each other forming a straight line. Each track expands 1.00 ft in length under the hot sun causing the track to buckle. If each ...
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General Physics 3 years 1 Answer 488 views

Question
A machine part is made up of two pieces, with centers of gravity shown in the figure.(Figure 1) Which point could be the center of gravity of the entire part?
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General Physics 3 years 0 Answers 2452 views