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Results tagged with homework-and-exercises
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user 115440
Applies to questions of primarily educational value - not only questions that arise from actual homework assignments, but any question where it is preferable to guide the asker to the answer rather than giving it away outright. Please READ THE GUIDANCE IN META before asking homework-like questions.
1
vote
Free body diagram (FBD) of a beaker having water and a block
The buoyant force IS the contact force.
Forces are:-
For the block: Its own weight and the buoyant force(or "contact force") by the liquid.
For the liquid: Its own weight, the contact force by block ( …
- 2,666
3
votes
Need help in understanding accelaration due to gravity
The gravitational force is given by $F_g=\frac{GMm} {r^2}$ where symbols have their usual meaning. And the acceleration due to gravity at the surface of a body (uniform and spherical) is $a_g=\frac{GM …
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