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tangare [24]
3 years ago
11

Why does a solar eclipse happen?

Biology
2 answers:
Aliun [14]3 years ago
6 0

Answer:

Sometimes when the Moon orbits Earth, the Moon moves between the Sun and Earth. When this happens, the Moon blocks the light of the Sun from reaching Earth. This causes an eclipse of the Sun, or a solar eclipse. During a solar eclipse, the Moon casts a shadow onto Earth.

Andru [333]3 years ago
3 0

Answer:

A solar eclipse occurs when the Earth, moon, and sun align together, and the moon in between casts a shadow over the Earth.

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What is the derived Sl unit for quantities of energy?
yuradex [85]

Answer:

C. Joule

Explanation:

Energy can be defined as the ability of an individual to do work per unit time.

There are different types of energy and these includes mechanical energy, chemical energy, solar energy, electrical energy, nuclear energy, wind energy etc.

Also, there are two (2) forms of energy and these are;

I. <u>Potential energy</u>: it can be defined as an energy possessed by an object or body due to its position.

Mathematically, potential energy is given by the formula;

P.E = mgh

<em>Where;</em>

  • <em>P.E represents potential energy measured in Joules.</em>
  • <em>m represents the mass of an object. </em>
  • <em>g represents acceleration due to gravity measured in meters per seconds square. </em>
  • <em>h represents the height measured in meters. </em>

II. <u>Kinetic energy</u>: it can be defined as an energy possessed by an object or body due to its motion.

Mathematically, kinetic energy is given by the formula;

K.E = \frac{1}{2}MV^{2}

<em>Where;</em>

  • <em>K.E represents kinetic energy measured in Joules. </em>
  • <em>M represents mass measured in kilograms. </em>
  • <em>V represents velocity measured in metres per seconds square.</em>

A derived unit can be defined as a unit derived through the multiplication of three (3) SI base unit; mass (kg) , length (m) and time (s).

Hence, the derived Sl unit for quantities of energy is Joules (m²kgs¯²).

5 0
3 years ago
Why is maintaining homeostasis within the cell important?
dsp73
Cellular homeostasis involves maintaining a balance of several factors that make a cell healthy
8 0
4 years ago
Read 2 more answers
Write your hypothesis about which substance, soil or water, will heat up faster.
melamori03 [73]
I believe that soil will heat up faster. <span>Land surfaces absorb much more solar radiation than water. This is due to the fact that most land surfaces are darker than water which of course means more absorption of solar radiation and heat.
~Deceptiøn
</span>
4 0
3 years ago
Which sentence best explains the ideas of the comm with respect to human population growth? A. Each birth adds another person to
elena55 [62]

<u>Complete Question:</u>

Which sentence best explains the idea of the tragedy of the commons with respect to human population growth?

A. Each person overuses air, water, land, and food resources.

B. Each birth adds another person to the population.

C. People have more in common than they realize.

D. People cannot help but be guided by the interests of the group.

<u>Answer:</u>

"Each person overuses air, water, land, and food resources" best explains the ideas of the tragedy of the commons with respect to human population growth.

<u>Explanation:</u>

In short, human rationality and collective rationality are at odds with each other and inconsistent within the tragedy of the commons. In the foreground, Hardin characterizes the population problem as a Commons tragedy since the Earth is finite and therefore can not continue to cater the growing human population.

A service must be scarce, rival in use, and non-exclusive for a Commons catastrophe to occur. Alternatives to commons catastrophe include enforcing individual liberties, controlling policy, or creating a collective action system.

4 0
4 years ago
Select the correct answer.
maria [59]
It’s C.... they usually move on cool highlands in the summer and warmer lowlands in the winter:)
8 0
3 years ago
Read 2 more answers
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