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charle [14.2K]
2 years ago
5

Based on the data in the table, what will happen when a sound wave travels

Physics
2 answers:
scoundrel [369]2 years ago
7 0

Answer:

D . The wave will speed up

Explanation:

notka56 [123]2 years ago
4 0

Answer:c

Explanation:

Did the quiz

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(GIVING BRAINLIST)
Leviafan [203]

Answer:

C

Explanation:

During an investigation you want to investigate different variables.

5 0
2 years ago
Can you make the work output of a machine greater than the work input?
ExtremeBDS [4]

Answer:

It is<em> impossible</em> to construct a machine which produces the <em>work output greater than the work input.</em>

Let us consider the II law of thermodynamics.

According to Kelvin Plank's statement any engine/machine does not give hundred percent efficiency. And violating the PMM-II(Perpetual motion of machine II kind), Always some amount of energy transferred  to the sink or surroundings.

Therefore

                     W(ouput) = Q₁-Q₂

There are many reasons to lower the work output, just for an example friction between the mating parts reduces the work output.

5 0
3 years ago
Read 2 more answers
NEED HELP ASAP!!!!!!!!!!!!!
love history [14]

Answer: Decreased risk of heart attack

Explanation:

thats the answer because it actually

increase rish of heart attack

Hope this helps :)

5 0
3 years ago
Read 2 more answers
A sledgehammer is an example of what kind of simple machine?
alisha [4.7K]

I am 95 percent sure the answer in C

3 0
2 years ago
In the equation for the gravitational force between two objects, which quantity must be squared?
Alex787 [66]

Answer:

The distance between the two objects must be squared.

Explanation:

Gravitational force always act between two objects that have mass. The gravitational force is a weak force and attractive in nature.

The force of pull depends on the masses of the two objects and the distance between them.

The formula to calculate gravitational force between two objects having masses 'm' and 'M' and separated by a distance 'd' is given as:

F_g=\frac{GmM}{d^2}

Where, 'G' is called the universal gravitational constant and its value is equal to 6.674\times10^{-11}\ m^3 kg^{-1} s^{-2}.

Now, from the above formula, it is clear that, the force of gravitation is inversely proportional to the square of the distance between the two objects.

Thus, the quantity that must be squared in the equation of gravitational force between two objects is the distance 'd'.

7 0
3 years ago
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