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adelina 88 [10]
3 years ago
12

onsider the free body diagram. If the sum of the tension forces is equal to the force of gravity, which description BEST applies

? A) A book is at rest on a tabletop. B) A physics student rests a backpack upon one shoulder. C) A girl hangs by both hands, motionless, from a trapeze. D) A girl falls slowly to Earth while strapped to a parachute.
Physics
1 answer:
cluponka [151]3 years ago
5 0
The answer is C) A girl hangs by both hands, motionless, from a trapeze.
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A 500 kg table with 4 legs rests on solid flat ground. I place 3 books on the center of the table with masses of 10 kg, 20 kg an
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Answer:

1,373.4 N

Explanation:

The mass of the table acts at the centre in addition to the books since that is the centre of gravity of the table.

Mass of books will be 10kg+20kg+30kg=60 kg

Total mass of table and books will be 500kg+60kg=560 kg

This mass is evenly distributed into the four legs hence 560kg/4 legs=140 kg per leg

Force is product of mass and acceleration due to gravity hence F=gm

Taking g as 9.81 m/s2 then

F=140*9.81=1,373.4 N

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In an HVAC system, the purpose of pneumatics is to serve as A. a controller B. conditional air flow C. an energy source D. a sou
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Answer: <u><em>A</em></u>

Explanation:

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3 years ago
For a block to move down an inclined plane what force has to be the greatest?
Hatshy [7]

Answer:

D) True. This is what creates the body weight

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Y Axis

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Let's examine the answers

A False This force does not apply because it is not a spring

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The answer is heat I think
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