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ollegr [7]
3 years ago
11

I need help with this one

Physics
1 answer:
Sophie [7]3 years ago
6 0
Soil should be right because sun and air are energy and ants are biotic for being living animals
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A movie stunt performer is filming a scene where he swings across a river on a vine. The safety crew must use a vine with enough
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Answer:

1125.66956 N

Explanation:

m = Mass of stunt performer

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v = Velocity of the swing = 7 m/s

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r = Radius of the swing = Length of vine = 11.5 m

From the free body diagram

T-mg-m\frac{v^2}{r}=0\\\Rightarrow T=mg+m\frac{v^2}{r}\\\Rightarrow T=m(g+\frac{v^2}{r})\\\Rightarrow T=80(9.81+\frac{7^2}{11.5})\\\Rightarrow T=1125.66956\ N

The minimum tension force the vine must be able to support without breaking is 1125.66956 N

7 0
3 years ago
what is the magnitude of the compression forces (assumed to be horizontal) acting on both sides of the center board that is sand
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W = weight of the board in between acting in down direction = 95.5 N

f = frictional force in upward direction by each board

\mu = coefficient of friction = 0.663

Using equilibrium of force in Upward direction

f + f = W

f = W/2

f = 95.5/2 = 47.75 N

frictional force is given as

f = \mu F

47.75 = (0.663) F

F = 72.02 N

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True or false the number of times a machine multipies effort force is a mechanical atlantis
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Answer: i think its true

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Shalnov [3]

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B thickness

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thickness

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