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3 years ago

How could the movement of tectonic plates create another supercontinent like Pangaea

1 answer:

3 0

Since the continents are moving ever so slightly over the years, in couple million years they could all connect again like Pangaea.

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What is the force acting on a boulder with a mass of 10 kg and an acceleration of 2 m/s/s?

nika2105 [10]

Answer:

Explanation:

The force acting on an object given it's mass and acceleration can be found by using the formula

force = mass × acceleration

From the question we have

force = 10 × 2

We have the final answer as

Hope this helps you

6 0

3 years ago

The sum of kinetic energy and potential energy within a system is called

SashulF [63]

Answer:

mechanical energy.

Explanation:

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3 years ago

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Why is energy efficiency important to society’s need to be efficient with energy usage?

gayaneshka [121]

Answer:

To save the unnecessary bills and carbon emissions.

Explanation:

Energy efficiency is important to society in the following ways:

1. It saves the unnecessary bills as buildings who are using energy efficiently have less demands.

2. Saving energy for the future generations as we know low demand would save the sources.

3. Energy efficiency is also important to society in environmental ways at efficient energy means low carbon emissions.

6 0

4 years ago

A wave has a wavelength of 11 mm and a frequency of 11 hertz. What is its speed?

eimsori [14]

Wave speed = frequency (in Hz) x wavelength (in m) so wave speed = 11 x 0.011 = 0.121 m/s

5 0

3 years ago

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The mass of a proton is 1833 times larger than the mass of an electron. When a proton an electron interact with each other the o

Ad libitum [116K]

B. Exactly the same as the electric force of the electron on the proton.

<u>Explanation:</u>

Even if the mass of proton is increased or decreased, the force between electron and proton will remain the same because force is dependent on the charge of the object and distance between them. The force between the charges is independent of their masses. So, even if the mass of a proton is 1833 times larger than the mass of an electron, the force between them will be same.

According to Coulomb's law:

$F = k\frac{q_1q_2}{r^2}$

where,

F is the force

q₁ and q₂ are the charges

r is the distance between the charges

8 0

3 years ago