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galben [10]
2 years ago
15

Identify characteristics of energy from the Sun. Check all that apply.

Physics
2 answers:
Vilka [71]2 years ago
8 0

Answer:

1.Almost all of the energy on Earth comes from the Sun

2.The energy in fossil fuels originally came from the Sun

3.Plants convert the energy of sunlight into chemical energy

Explanation:

xxMikexx [17]2 years ago
6 0

Answer:

First one, third one, and fourth one

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Which graph shows the relationship between temperature, X, and kinetic energy, Y?
strojnjashka [21]
Answer: see the graph attached (straight line, passing through the origin and positive slope).


Justification:

1) Kinetic energy and temperature are in direct proportion. That means:

i)  Being kinetic energy y and temperature x: y α x

ii) That implies: y = kx,where k is the constant of proportionality.

iii) The graph is a line that passes through the origin and has positive slope k (k = y / x).

2) The proportional relationship between kinetic energy (KE) and temperature (T) is shown by the Boltzman law, which states:

Average KE = [3 / 2] KT, where K is Boltzman's constant, whose graph is of the form shown in the figure attached.

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A school bus full of students drives down the road. Because it is moving, it has 1.potential energy because it has the ability t
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3 years ago
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What is the net work on the block?
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Answer:

A block device is a computer data storage device that supports reading and (optionally) writing data in fixed-size blocks, sectors, or clusters. These blocks are generally 512 bytes or a multiple thereof in size

8 0
3 years ago
A train whose proper length is 1200 m passes at a high speed through a station whose platform measures 900 m, and the station ma
TiliK225 [7]

Answer:

0.66c

Explanation:

Use length contraction equation:

L = L₀ √(1 − (v²/c²))

where L is the contracted length,

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and c is the speed of light.

900 = 1200 √(1 − (v²/c²))

3/4 = √(1 − (v²/c²))

9/16 = 1 − (v²/c²)

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3 years ago
When y⁷ is multiplied by y⁹ the answer is?
Allushta [10]

Answer:

y^16

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who need to add the exponents only

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2 years ago
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