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Olegator [25]
3 years ago
10

Mechanical waves are created when a source of energy causes a medium to ?

Physics
2 answers:
erica [24]3 years ago
5 0
Mechanical waves are created when a source of energy cause a medium to "VIBRATE".
garik1379 [7]3 years ago
3 0
<span>A mechanical wave is created when a source of energy causes a vibration to travel through a medium 

And yeah lol 
A mechanical wave is a disturbance in matter that carries energy from one place to another :) 

This what you needed? </span>
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Gravity on earth is 9.8 m/s squared, and gravity on the moon is 1.6 m/s squared. So if the mass of an object on earth is 40 kilo
garik1379 [7]

The mass of an object on Earth is the same as its mass on the Moon. The weight is different.

Weight = m * g

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If the mass of an object on Earth is 40 kg, its mass on the Moon is 40 kg and its weight on the Moon is 64 N. 

7 0
3 years ago
Why is the scientific method described as cyclic?
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A pin fin of uniform, cross-sectional area is fabricated of an aluminum alloy (k = 160 W/m-K). The fin diameter is D = 4 mm, and
frozen [14]

Answer:

Given that

D= 4 mm

K = 160 W/m-K

h=h = 220 W/m²-K

ηf = 0.65

We know that

m=\sqrt{\dfrac{hP}{KA}}

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0.65=\dfrac{tanh37.08L}{37.08L}

By solving above equation we get

L= 36.18 mm

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\varepsilon =\dfrac{2\ tanhmL}{\sqrt{\dfrac{hD}{K}}}

\varepsilon =\dfrac{2\ tanh(37.08\times 0.03618)}{\sqrt{\dfrac{220\times 0.004}{160}}}

ε = 23.52

5 0
2 years ago
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mezya [45]
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to find the distance:

t : time measured between launching the beam and receiving it 

d : distance

d = ct 

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Hope it is helpful
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