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4 years ago

Which of the following objects is usually the smallest?

Physics

2 answers:

Stels [109]4 years ago

8 0

I would say comet is the smallest and the sun is the biggest

Deffense [45]4 years ago

3 0

b. comets

Although comets appear very large when they are near the Sun because of the large dust cloud that follows behind them, they are actually the smallest of the objects listed.

Comets typically have a diameter of less than 6 miles, which is much smaller than the typical diameter of the other objects listed above.

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Two speakers in a stereo emit identical pure tones. As you move around in front of the speakers, you hear the sound alternating

BigorU [14]

Answer:

Interference

Explanation:

When two traveling waves traveling waves along the same path are superimposed(combine). The superimposition of these two waves results in the production of a resultant wave which is defined by the net effect of the two waves. Wave interference occurs most types of waves including radio wave, light, acoustic waves and other wave types. Alternating sound between loud and Zero is heard as the two speakers emit identical pure tones because the resultant amplitude after the interference of the two sound waves is the vector sum of each of their amplitudes. A loud sound is heard, when the crest of both waves meets each other and a zero is heard if the crest of one meets the trough of the other as they cancel out.

3 0

3 years ago

How many species go extinct every day??

Law Incorporation [45]

Approximately 150-200 species.

5 0

3 years ago

How many joules of work are done on an object when a force of 10 N pushes it 5 m?

zhenek [66]

Answer:

option C

Explanation:

given,

Force on the object = 10 N

distance of push = 5 m

Work done = ?

we know,

work done is equal to Force into displacement.

W = F . s

W = 10 x 5

W = 50 J

Work done by the object when 10 N force is applied is equal to 50 J

Hence, the correct answer is option C

5 0

4 years ago

Which statement is true about gravitational forces?

Readme [11.4K]

Hey there!

Your correct answer would be (<span>Every mass exerts a gravitational force on every other mass.) It really doesn't matter the size in mass what so ever, gravity is stronger than mass, mass in nothing compared to mass. Therefor, gravity exert's mass on any object with any size of mass.

Your correct answer would be . . .

</span> $\boxed{\boxed{Every \ mass \ exerts \ a \ gravitational \ force \ on \ every \ other \ mass}}$
<span>
Hope this helps.
~Jurgen</span>

6 0

3 years ago

Read 2 more answers

How much heat is needed to melt 16.5kg of silver that is initially at 20*c?

zubka84 [21]

The Specific Heat Capacity of silver is 230 J/kgK, melting point is 961.8 C so the difference is 941.8K. Now we simply do q=230J/kgK*16.5kg*941.8K and that is 3 574 131 J

8 0

3 years ago