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Results tagged with forces
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user 117789
This tag is for the classical concept of forces, i.e. the quantities causing an acceleration of a body. It expands to the strong/electroweak force only insofar as they act comparable to ‘classical’ forces. Use the [particle-physics] tag for decay channels due to forces and [newtonian-mechanics] or one of the other subtopics of [classical-mechanics] for the dynamics of classical systems.
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4
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Internal forces in an isolated system
I did a weird activity and now I am trying to figure out the physics behind it:
While sitting on a chair I kept my feet above the ground and tried to move the chair forward. I was able to. Initially, …
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3
votes
2
answers
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Force against mg when block is connected to rod and held horizontally
In the image attached, what would be the force that would balance out the gravitational force $mg$?
The block is also not accelerating downwards so there should be some force acting on the block to …
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5
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Pressure exerted by a gas and the ideal gas equation
While determining the pressure exerted by any gas at a temperature why do we not consider the surface area of the container in which it is kept? Pressure depends on the force exerted by the gas on the …
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Pressure exerted by a gas and the ideal gas equation
I was taking force exerted by the gas molecules on the walls of the container to be constant. After studying thermodynamics this got cleared. The total force exerted by the gas on the container change …
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1
answer
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Conservation of mechanical energy when object strikes the ground
I even wanted to ask what we mean by non-conservative internal forces? …
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3
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What are some phenomena that can not be described without the help of Newton's third law of ... [closed]
What are some phenomena that can not be described without the help of Newton's third law of motion? All the phenomena I can think of can be explained with the help of Newton's first law or second law. …
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4
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Rotating the bucket in circular motion without spilling water
In the bucket experiment when the bucket reaches the top of the circle why will it have a normal force acting on the water downwards? Doesn't normal force oppose any other force? There is no force act …
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Work and energy example
When the weightlifter lifts the mass he does work and transfers some energy to the mass which is stored* in the mass as potential energy. Once the bob has been lifted the weightlifter applies a force …
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3
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Tension in a string with pulley and two objects at opposite ends
Tension is confusing me. According to my understanding of tension the tension in a string is uniform but while going through the solution of a problem I read that tge tension on the left part of the …
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