4 years ago

Could someone help me

Physics

1 answer:

dmitriy555 [2]4 years ago

7 0

Answer:

1. digestive system - anything assisting in eating, like the stomach

2. respiratory system - anything assisting in breathing, like the lungs

3. muscular system - well, the muscles :)

4. circulatory system - the heart and the blood vessels

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What simple machines combine to make a shovel which is a compound

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The towline exerts a force of p = 4 kn at the end of the 20-m-long crane boom. if u = 30, determine the placement x of the hook

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Answer:

The answer is 80 kN . m (clockwise)

Explanation:

As,

M = P x L

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Substituting P for 4000N.

M = -4000N x 20m

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4 years ago

The lowest note on a grand piano has a frequency of 27.5 Hz. The entire string is 2.00 m long and has a mass of 440g . The vibra

ANEK [815]

Answer:

Tension, T = 2038.09 N

Explanation:

Given that,

Frequency of the lowest note on a grand piano, f = 27.5 Hz

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Length of the vibrating section of the string is, L = 1.75 m

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4 years ago