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steposvetlana [31]
2 years ago
9

Question 6 of 10

Physics
1 answer:
sergejj [24]2 years ago
3 0
The answer is C.89,866. I multiplied 262x343.
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Using a rope that will snap if the tension in it exceeds 356 N, you need to lower a bundle of old roofing material weighing 478
klasskru [66]

Answer:

a) 2.5 m/s²

b) 6.12 m/s

Explanation:

Tension of rope = T = 356N

Weight of material = W = 478 N

Distance from the ground = s = 7.5 m

Acceleration due to gravity = g = 9.81 m/s²

Mass of material = m = 478/9.81 = 48.72

Final velocity before the bundle hits the ground = v

Initial velocity = u = 0

Acceleration experienced by the material when being lowered = a

a) W-T = ma

⇒478-356 = 48.72×a

\Rightarrow \frac{122}{48.72} = a

⇒a = 2.5 m/s²

∴ Acceleration achieved by the material is 2.5 m/s²

b) v²-u² = 2as

⇒v²-0 = 2×2.5×7.5

⇒v² = 37.5

⇒v = 6.12 m/s

∴ Velocity of the material before hitting the ground is 6.12 m/s

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3 years ago
Under which of the following conditions is Lactic acid fermentation most likely occur?
adell [148]
Lactic acid is caused by using atp without oxygen being avaliable
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If you quadruple the temperature of a black body, by what factor will the total energy radiated per second per square meter incr
Anastaziya [24]
Radiant heat transfer is proportional to the 4-th power of absolute temperature.
Therefore if the temperature is quadrupled, the radiant heat energy will increase by a factor of
4⁴ = 256

Answer: 256
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What would a force diagram for something WHILE it is being thrown DOWNWARDS look like? <br><br> Ty
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Answer:

it look the same just to tell you

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What is the mass of a 200 kg object on Venus?
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A-200 kg
I hope this helped xx
8 0
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