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wolverine [178]
2 years ago
7

A ruler vibrates 70 times in 20 seconds.what is the frequency of its vibration

Physics
1 answer:
Bad White [126]2 years ago
8 0

Answer:

we know that that frequency= n/t

= 70/20

= 3.5 Hertz

Explanation:

i think that the answer

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Harman [31]

The wind direction changed from morning to night because  land and water absorbing solar energy unequally.

<h3>Convection current</h3>

Convection is said to occur when there is heat transfer by an actual movement of participles from place to place. The movement of air mass (wind) is affected by the relative amounts of solar energy absorbed by the land and sea.

Hence, the wind direction changed from morning to night because  land and water absorbing solar energy unequally.

Learn more about convection current: brainly.com/question/12841408

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Explanation:

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3 years ago
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3 years ago
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natta225 [31]

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4 0
2 years ago
Read 2 more answers
A sprinter accelerates from rest to 10.0 m/s in 1.28 s . Part A Part complete What is her acceleration in m/s2? a a = 7.81 m/s2
Mashutka [201]

Explanation:

It is given that,

Initial speed of sprinter, u = 0

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a=\dfrac{v-u}{t}

a=\dfrac{10\ m/s}{1.28\ s}

a=7.81\ m/s^2

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a=101408.45\ km/h^2

Hence, this is the required solution.

3 0
3 years ago
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