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Klio2033 [76]
4 years ago
10

If you could use an elevator or the stairs to lift a box to the tenth floor,which has greater power?why?

Physics
1 answer:
Nostrana [21]4 years ago
7 0
Stairs don't HAVE any power. When you use the stairs, YOU have to provide all the power. I would use the elevator, because the machinery that runs it produces the power and I only have to stand there.
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gulaghasi [49]

Answer:

Spring constant, k = 283.33 N/m

Explanation:

Given that,

Force acting on the spring, F = 8.5 N

Stretching in the spring, x = 3 cm = 0.03 m

Let k is the spring constant of the spring. It can be calculated using Hooke's law as :

F=-kx

k=\dfrac{F}{x}

k=\dfrac{8.5\ N}{0.03\ m}

k = 283.33 N/m

So, the spring constant of the spring is 283.33 N/m. Hence, this is the required solution.

5 0
4 years ago
the force required to lift a load of 800 Newton by using a Lever having a mechanical advantage of 1.6 is​
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Answer:force required to lift the load = 500N

Explanation:

Mechanical advantage for a lever is given by the formulae

= force output/force input

or

Mechanical Advantage = Load / Effort

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Force output  / Load= 800 N

mechanical advantage = 1.6

Force input / Effort =??

Force input=  Force output /Mechanical advantage

= 800N / 1.6

=500N

OR

Effort = Load/ Mechanical Advantage = 800/ 1.6 = 500N

6 0
3 years ago
Why are there more fat, shaggy bison in Time 3 than in Time 1?
tatiyna

Answer:

I believe the answer is D.

Explanation:

It would have been helpful if there had been more information included with this problem, but it would make sense that the answer is D.  If there is a winter between time 1 and 3, bison that are not well-suited to the weather, (skinny and smooth) will die off, and only the ones well-suited to winter weather will survive to produce offspring.

8 0
3 years ago
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Inessa05 [86]

Acceleration = (change in speed) / (time for the change)
Acceleration = (4 m/s) / (8 seconds)
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Force = (mass) x (acceleration)
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4 0
3 years ago
Read 2 more answers
How many planets are made up of gas
Vadim26 [7]

Answer:

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Explanation:

i hope this helps

7 0
2 years ago
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