3 years ago

A. Ears B. Air C. Water D. Rocks

Physics

1 answer:

Marianna [84]3 years ago

6 0

Answer:

A Ears

Explanation:

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Based on particle size.
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A piano string having a mass per unit length of 5.00 g/m is under a tension of 1350 N. Determine the speed of transverse waves i

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Answer:

The speed of transverse waves in this string is 519.61 m/s.

Explanation:

Given that,

Mass per unit length = 5.00 g/m

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Using formula of speed of the transverse waves

$v=\sqrt{\dfrac{T}{\mu}}$

Where, $\mu$ = mass per unit length

T = tension

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One mole of water is equivalent to 18 grams of water. A glass of water has a mass of 200 g. How many moles of water is this?

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A team of eight dogs pulls a sled with waxed wood runners on wet snow (mush!). The dogs have average masses of 18.5 kg, and the

meriva

Answer:

a. $2.86 m/s^2$

b.1058 N

Explanation:

We are given that

Mass of each dog,M=18.5 kg

Mass of sled with rider,m=250 kg

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$\mu_s=0.14$

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By Newton's second law

$8F-f=(8M+m)a$

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$T=250\times 2.86+0.14(250)(9.8)=1058 N$

Hence, the force in the coupling between the dogs and the sled=1058 N

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