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Luda [366]
4 years ago
11

Why exactly do people use simple machines like a pulley

Physics
1 answer:
Komok [63]4 years ago
6 0
They can change the direction of force which can result in easier movement.
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An experiment is performed to test the effect of three different types of water on the growth of a plant. The test is done by us
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Compare and contrast the inner and outer planets. (Must be in complete sentences) (At least 5 sentences).
Karolina [17]

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8 0
4 years ago
. Two identical vehicles traveling at the same speed are made to collide with barriers in an insurance company collision test. T
Serggg [28]

Answer:

F₁ / F₂ = 10

therefore the first out is 10 times greater than the second barrier

Explanation:

For this exercise let's use the relationship between momentum and momentum.

         I = F t = Δp

in this case the final velocity is zero

        F t = 0 -m v₀

        F = m v₀ / t

in order to answer the question we must assume that the two vehicles have the same mass and speed

concrete barrier

        F₁ = -p₀ / 0.1

        F₁ = - 10 p₀

barrier collapses

         F₂ = -p₀ / 1

let's look for the relationship of the forces

        F₁ / F₂ = 10

therefore the first out is 10 times greater than the second barrier

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3 years ago
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heat from water goes into air in ball

air expands

ping goes the dent

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3 years ago
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C. is correct. when you make a pizza, you see the the meat or pepperoni or cheese heating up and sometimes melted. (thats physical). on the inside the crust in heated and the toppings are cooked (chemical)
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