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HACTEHA [7]
3 years ago
7

If I had a six pulley system and a resistance of 24,000 N, how much effort would I need to lift it?

Physics
1 answer:
lapo4ka [179]3 years ago
6 0
Suppose you could rig up a pair of pulley systems and get a friend, who is as strong as you, to pull one of them. You'd still have trouble, but you might be able to do it because each pulley would lift half the weight, or 1,000 pounds, and a quarter of that weight is 250 pounds
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Answer:

The material must be durable (quality of the material requirement)

Explanation:

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3) The material should be readily available (easily sourced)

Therefore, given that the engineers initially had the criteria for the required plastic to be of high quality and to be readily available, and that the poly-carbonate they found is long lasting and not too costly, the criteria met that was set initially was the  quality criteria of durability.

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3 years ago
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3 years ago
What is the function of the electron transport chain in cellular respiration. why is oxygen needed for the electron transport ch
SpyIntel [72]
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2) Why we need oxygen for the electron transport chain:
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8 0
3 years ago
A Canadian driving from Quebec to Montreal finds he has traveled 271 km. How many miles is this? There are 1.61 km in 1 mi
kotegsom [21]

Answer:

168.32 mile

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1 mile = 1.61 km

1.61 km = 1 mile

1 km = 1 / 1.61 mile

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