All Questions
Tagged with equilibrium homework-and-exercises
129
questions
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An object is connected to the end of a spring and is immersed in water. What are the forces acting on the object? [closed]
The actual question is
A copper piece of mass 10g is suspended by a vertical spring. The spring elongates 1 cm over it's natural length to keep the piece in equilibrium. A beaker containing water is ...
- 83
2
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1
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49
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Investigating the stability of a wooden block
Consider the above experimental design. At the end of the strip, at point $p$, a mass $m$ is attached, the stability of the wooden block above is determined by the angle $θ$ at which the block topples ...
- 318
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190
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Gravitational Null Points in a system of point masses
For an equilateral triangle formed by 3 point masses which has a circumradius 'a' there are 4 null points: The centroid and 3 other points on the angular bisectors of the three sides.
On calculation ...
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49
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When calculating Lagrange points, $L_3$, $L_4$ and $L_5$ are good, but why are my $L_1$ and $L_2$ too close to the Earth?
I'm using python to calculate the Lagrange points of the Sun-Earth system. I started assuming that - for $L_1$ at least - the sum of the gravitational acceleration towards the Sun and the centripetal ...
- 111
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The application of a minimum and maximum force
There are three blocks - a big block (C) above a horizontal surface that is smooth. A block (A) of mass m is resting on block C, and is also connected to another block (B) of mass m through an ideal ...
0
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32
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How would a heat engine with 3 bodies work?
Say we have 3 equal bodies in contact, and there is a heat engine that absorbs and emits heat to these 3 bodies and it does work to an external medium.
How would that work? I imagine that it would get ...
- 69
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123
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Calculate weight distribution on 2D plane
I am trying to figure out how I can have a formula for the weight distribution on a square. But let me just describe what I am doing,
We have the classical horizontal beam support problem
And I we can ...
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Coordinates of center of gravity in non-uniform gravitational field
The following is a textbook problem where one is asked to find the $x$ and $y$ coordinates of the center of mass AND those of the center of gravity in a non-uniform gravitational field:
The location ...
- 123
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65
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2 rods connected at a pivot and attached to a spring
I have a question concerning this problem
First I calculate F1 by taking the origin at F2 and imposing equilibrium for the torque thus getting $ F_1 = \frac{a}{a+b} F $ and similarly for F2, then I ...
2
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1
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71
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Free body diagram of two cards leaning against each other [closed]
here is my body diagram:
he have the two weights two normals and two frictions however I think I am missing something becaused I only have cosine components when analysing the torque eq with respect ...
- 111
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447
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Need help with a physics question about a ladder leaning against a wall [closed]
I am struggling with a physics question that involves a ladder leaning against a wall. I have attempted to solve the problem, but I am not confident in my answer.
The question is as follows:
"A ...
- 19
3
votes
1
answer
219
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Temperature and pressure being equal at equilibrium (from first law of thermodynamics)
I have a question in which an insulated container of gas with volume $V$ is divided into two parts $V_1$ and $V_2$ by a movable barrier through which energy can pass, and need to show that, using the ...
-1
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1
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31
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Find the speed of the particle when it has covered a displacement of magnitude $L$ [closed]
This is my first question on this site.
A particle of mass $m$ is constrained to move along $x-\textrm{axis}$. The only force acting on the particle is given by $$F=F_0\cos\left(2\pi\frac{x}{\lambda}\...
- 101
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61
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Can you find a better argument for this result in a thermodynamics problem?
Imagine two systems, A and B, both containing the same ideal gas and connected through a small tube such that they can interchange particles. They start out at $p_i$ and $T_i=T_A$, which for system A ...
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4
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610
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Calculate equilibrium position using conservation of energy in vertical spring mass system
I am very confused in the vertical spring mass system right now, below is some of my thinking process:
Say I want to find the equilibrium of a spring mass system, my teacher used the force way to ...
