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2 years ago

Compare and contrast Earth to the other inner planets.

2 answers:

s2008m [1.1K]2 years ago

5 0

Answer:

contrast:

Earth is considered to be very unique because of its ability to sustain life and unique atmosphere that has the ability to keep earth at stable temperature with is crucial for plants, animals/ ocean and land, and humans to live.

compare:

Mars has been studied by scientists and have discovered what used to be bodies of water which means the formation of mars was similar to ours.

i hope this helped :)

Marta_Voda [28]2 years ago

4 0

The inner planets are;- Mercury, Venus, Earth and Mars. Earth is the only planet which has atmosphere, water on the surface or know of to have water(Mars might have water underground), and life.

Mercury is pretty much a small planet on fire by day, but freezes at night.

Venus is a gas planet which is usually on fire in places too, but has mass ice craters on the surface.

Earth, well just look out your window.

Mars may have been an earth like planet at one stage, (still unknown) but is known as the red planet due to its volcanic activity. Mars also has the biggest mountain/volcano on any known planet called Mt Olympus. It's 3 times the size of Mt Everest.

Hope this helps!! :)

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A sphere P, made of steel, has a weight of 10 N on Earth.

expeople1 [14]

An object’s mass is not determined by gravity, however weight is. With this information, you can figure out that Mars has less gravity acting on the object.

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2 years ago

At what distance r from a point charge is the electric potential due to that point charge 0 v?

galben [10]

Answer:

Infinite Distance

Explanation:

The electric potential due to a point charge can be expressed by the following equation:

$V=\frac{kQ}{r}$

Here,

V is the electric potential due to the point charge

k is the proportionality constant

Q is the magnitude of the point charge

r is the distance from the charge

As the value of r increases, the value of V decreases since there is an inverse relation between the two. The value of V can be absolutely 0 when the distance from the charge is infinite i.e. r is infinite. Mathematically, dividing a number by infinity results in zero. Also theoretically speaking, at infinite distance the electric field lines won't approach and hence the electric potential would be zero.

8 0

2 years ago

Suppose that a public address system emits sound uniformly in all directions and that there are no reflections. The intensity at

dybincka [34]

Answer:

The intensity at a spot 71 m away is $4.02*10^{-5} Wm^{-2}$

Explanation:

Given:

Initial intensity, $I_{1}=3.0*10^{-4} Wm^{-2}$ at a distance, $d_{1} = 26 m$

Required:

New intensity, $I_{2} =?$ at a distance, $d_{2} = 71 m$

Using the inverse square law,

I ∝ $\frac{1}{d^{2} }$

⇒ $I_{1}$ $I_{1}d_{1}^{2} =I_{2}d_{2}^{2}$

$I_{2} =\frac{I_{1} d_{1}^{2} }{d_{2}^{2}} =\frac{3.0*10^{-4}*26^{2} }{71^{2} } \\$ ×

$I_{2}=4.02*10^{-5} Wm^{-2}$

Thus, the intensity at a spot that is 71 m away is $4.02*10^{-5} Wm^{-2}$

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3 years ago

How does convection play a role in hurricanes

Sonbull [250]

Answer:

Convection is what keeps the hurricane going in till the storm hits land.

Explanation:

Convection is the warm, moist current that rises above sea level and as it cools into water vapor it releases energy which a hurricane runs on. Once the hurricane hits land it continues to lose energy to keep it going because there's no convection from the sea currents rising above sea level to release energy.

Hope this helps.

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2 years ago

Which of the following is least dense. cork .glass .water .or mercury. HURRY PLS

Papessa [141]

Cork would be less dense

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2 years ago

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