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2 years ago

The fact that Mercury has no atmosphere is evidence that it _____.

Physics

2 answers:

murzikaleks [220]2 years ago

8 0

Answer:

The correct choice is

"reflects a small percentage of the sunlight that strikes it"

Explanation:

Mercury has no atmosphere and it being very close to sun receives large amount of sunlight. due to absence of atmosphere, much of the sunlight reach the surface of the planet and gets absorbed by the surface making it very hot for life. Only a small percentage of sunlight that strikes the surface gets reflected.

Naddika [18.5K]2 years ago

7 0

We want to know what does the fact that Mercury has no atmosphere tell us. Since Mercury has no atmosphere it cant reflect a lot of sunlight that is hitting its surface. Its constantly being hit by solar wind. So Mercury reflects a small percentage of the sunlight that strikes it.

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A charge of 4.5 × 10-5 C is placed in an electric field with a strength of 2.0 × 104 . If the charge is 0.030 m from the source

ololo11 [35]

Answer:

0.027 J

Explanation:

The formula of the potential energy in electrostatic (U) is

$U = q \times E \times d$

The values given in the question are

Charge : q = $4.5 \times 10^{-5} C$

Electric Field strength : E = $2.0 \times 10^{4} N/C$

Distance : d is 0.030 m

Insert in the formula , will give us

$U = 4.5 \times 10^{-5} C \times 2.0 \times 10^{4} N/C \times 0.030 m$

Further solving it

$U = 0.027 J$

Which is the required answer.

Thanks

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2 years ago

Two objects of same material are travelling near you. Object A is a 1.1 kg mass traveling 10.2 m/s; object B is a 2 kg mass trav

Gnoma [55]

Answer:

Object A

Explanation:

The object that would make you feel worse if you're hit by it is the object possessing the highest momentum. Thus, we need to find the momentum of the two objects.

Momentum of an object is the product of its mass and that of it's velocity. Momentum is given by the formula

P = M * V, where

P = momentum

M = mass of the object

V = velocity of the object

Now, solving for object A, we have

P(a) = 1.1 * 10.2

P(a) = 11.22 kgm/s

And then, solving for object B, we have

P(b) = 2 * 5

P(b) = 10 kgm/s

The object when the highest momentum is object A, and thus would make you feel worse when hit by it

3 0

2 years ago

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Elza [17]

Answer:

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Explanation:

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oksian1 [2.3K]

Answer:

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Explanation:

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konstantin123 [22]

The answer is true. I hope that this helps you out!!

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