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2 years ago

Name TWO WEAKNESSES of the model pictured below

Physics

1 answer:

Nikolay [14]2 years ago

7 0

Answer:

Here are a few:

1) The orbital radius of these planets is ridiculously small an in no way representative of their actual radii.

2) The planets will only line up like that once every 5200 years, making this very unrepresentative of their usual relations - although this does make their order in distance from the sun.

3) The nebulae, comet, lens flare, and other junk in the background is incorrect.

4) If this is meant as a representation of the planets, then Pluto should not be there as it is now considered a planetoid.

5) The planets are incorrectly scaled both to each other and to the sun.

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On a cello, the string with the largest linear density (1.44 x 10-2 kg/m) is the C string. This string produces a fundamental fr

Rus_ich [418]

Answer:

$T=346.5N$

Explanation:

From the question we are told that:

Density $\rho= (1.44 * 10^{-2} kg/m)$

Frequency $F=93.0Hz$

Length $l=0.834m$

Generally the equation for Frequency is mathematically given by

$F=\frac{1}{2 l}sqrt{\frac{T}{\rho}}$

Therefore

$T=\rho(2 lF)^2$

$T= (1.44 * 10^{-2}*(2*0.834)(93.0))^2$

$T=346.5N$

4 0

2 years ago

What happens if a bar magnet is broken in half?

laiz [17]

<span>C. Each half becomes a new bar magnet with two magnetic poles.

A magnet is still a magnet, no matter how many pieces it is in.</span>

4 0

2 years ago

Read 2 more answers

With an average surface temperature of about 737 K, _______ is the hottest planet.

givi [52]

With an average surface temperature of about 737 K, Venus is the hottest planet.

While Mercury is closest to the sun, it has gaseous molecules that protect it. Venus is the second closest planet to the sun, and is the hottest planet.

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2 years ago

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How do you know the earth is rotating on its axis

cupoosta [38]

Answer:

Read below!

Explanation:

You can watch the sun wheel across the sky during the day, and the stars at night. Focus a telescope on any star besides the north star--especially southern stars--and you can watch them drift across your field of view.

An alternative explanation is that all the stars are painted on (or holes in) some canopy that rotates around the earth. This explanation does not account for the motion of the "wanderers," or planets, as the Greeks called them, or for the path of the moon among the stars.

As we know the stars are massive bodies of significant and varying distance to the earth, the notion they all swing around us in unison seems highly implausible

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2 years ago

A plane is flying east when it drops some supplies to a designated target below. The supplies land after falling for 10 seconds.

Ivanshal [37]

Part 1)

here we know that supply took 10 s to reach the ground

so here we will have

$y = \frac{1}{2}gt^2$