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Neporo4naja [7]
3 years ago
14

Which of the following can carry light waves but not sound waves

Physics
2 answers:
jarptica [38.1K]3 years ago
6 0

Answer:

Vacuum

Explanation:

Flauer [41]3 years ago
5 0
The answer is vacuum
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I am having trouble with writing a 2 paragraph summary about this vidio can someone help me
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Answer:

where is the video?

Explanation:

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3 years ago
The container was lifted a height of 14 m
Alika [10]
Work done = Force X Distance

3 430 000J = Force X 14m

Force = 3 430 000J / 14m
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Hope this helps!
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2 years ago
What is surface tension<br><br>​
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Surface tension is the tendency of liquid surfaces to shrink into the minimum surface area possible. Surface tension allows insects, usually denser than water, to float and slide on a water surface.

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3 years ago
6. A lumberjack is standing on a log floating on a lake. She starts from rest, then runs along the log to the end, when she jump
scoray [572]

Answer:

a) -3.267 m/s

b) 2.227 m/s

Explanation:

As per the conservation of momentum

m1v1 + m2v2=0

m1= mass of log

m2 = mass of lumber jack

v1 = velocity of log

v2 = velocity of lumber jack

a) Velocity of first log

-\frac{70*7}{150} = -3.267 m/s

b) m1v1 + m2v2 = m3v3

Velocity of log

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4 0
2 years ago
The substances referenced in the table are being considered for use in cooking materials. Since the materials must be melted dur
frutty [35]

Brass requires more energy than silver

Aluminum requires more energy than copper

Aluminum requires more energy than brass

Explanation:

The specific heat capacity of a substance indicates the amount of heat energy required to raise 1 kg of that substance by 1 degree in temperature.

Mathematically:

C=\frac{Q}{m\Delta T}

where

Q is the heat supplied to the substance

m is the mass of the substance

\Delta T is the change in temperature

Therefore, the higher the specific heat capacity of a substance, the more energy is needed to increase its temperature.

Here we can compare the specific heat capacity of the materials mentioned:

Silver: C=0.233 J/gK

Brass: C=0.380 J/gK

Platinum: C=0.130 J/gK

Aluminium: C=0.910 J/gK

Copper: C=0.390 J/gK

Therefore, the correct statements are:

Brass requires more energy than silver

Aluminum requires more energy than copper

Aluminum requires more energy than brass

Learn more about specific heat:

brainly.com/question/3032746

brainly.com/question/4759369

#LearnwithBrainly

3 0
3 years ago
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