2 years ago

What lasts longer... a perm, or a chemical relaxer for your hair ?

Physics

1 answer:

Dmitrij [34]2 years ago

7 0

Answer:

Perm lasts longer

Explanation:

Cuz a chemical relaxer only lasts a few weeks and a perm lasts a few months hope this helps

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2 years ago

A blender takes in 180 J of electrical energy. Of the 180 J, 90 J are transformed into kinetic energy, 60 J are transformed into

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3 years ago

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2 years ago

Calculate the work done if a boy lifts a bag of cement 500N to the floor of a lorry 2.5m above the ground

eduard

Answer:

W = 1250 J = 1.25 KJ

Explanation:

The work done by the boy is due to the change in the position of the cement vertically. Hence, the work done in this case will be equal to the potential energy of the cement:

$W = P.E\\W = mgh$

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W = Work done = ?

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h = height covered = 2.5 m

Therefore,

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2 years ago