3 years ago

Which of the following would act as a barrier to sound waves?

Physics

1 answer:

Y_Kistochka [10]3 years ago

4 0

Headphones and earplugs

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During combustion reactions, explain why the energy of the reactants must exceed the total energy of the products

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In these reactions the products are higher in energy than the reactants. ... This barrier is due to the fact that to make CO2 and H2O we have to break 4 carbon-hydrogen bonds and some ...

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3 years ago

A constant force of 20. newtons applied to a box causes it to move at a constant speed of 4.0 meters per second. How much work i

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10. What is the acceleration of a 1000 kg car subject to a 500 N net force?

Simora [160]

Answer:

0.5m/s^2

Explanation:

We can use the formula [ F = ma ] but solve for "a" since that is what we are looking for.

F = ma

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2 years ago

Find the volume of a sphere of radius 10 mm.

vredina [299]

Answer:

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3 years ago

What are two ways an engineer can build a car in order for it to accelerate faster

Ket [755]

Explanation:

Take F=ma

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For a higher, F higher or m lower

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2 years ago