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4 years ago

Nuclear energy is an alternate energy source produced from atomic reactions.

Chemistry

2 answers:

soldier1979 [14.2K]4 years ago

8 0

True true true true true true

soldi70 [24.7K]4 years ago

7 0

Answer:

True

Explanation:

We have to tell that given statement is false or not

Nuclear energy is an alternate energy source produced from atomic reactions.

Alternative source of energy: It is defined as that source of energy which includes all renewable sources and nuclear.It is that source of energy which is not derived from fossil fuels.

Nuclear energy is an alternate energy source produced from atomic reactions .It can not derived from fossil fuels .Therefore, it is true .

Yes, nuclear energy is an alternative source produced from atomic reactions.

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20 N force moving a box to 30 meters distance. How much work id done? if it takes 10 sec to do this work, how much power is used

dalvyx [7]

Answer:

Work done = 600 J

Power used = 60 W

Explanation:

Given:

Force acting on the box is, $F=20\ N$

Displacement of the box is, $S=30\ m$

Time taken for the work, $t=10\ s$

Now, we know that, work is said to be done by a force only when there is displacement caused by the force in its direction.

Here, the force acting on the box causes a displacement of 30 m in its direction. So, work done is equal to the product of force and displacement caused.

Therefore, work done on the box is given as:

$Work=Force\times Displacement\\Work=F\times S\\Work=(20\ N)\times (30\ m)\\Work=600\ J$

Therefore, the work done is 600 J.

Now, we know that, power is given as work done per unit time.

So, power used is given as:

$Power=\frac{Work}{Time}\\\\Power=\frac{600\ J}{10\ s}\\\\Power=60\ W$

Therefore, the power used is 60 W.

5 0

3 years ago

Owls do most of their hunting during the night and they have specialized cells in their eyes that provide good night vision. The

KiRa [710]

C) They have a large number of rods and small number of cones.

7 0

3 years ago

Read 2 more answers

Concentrated sulfuric acid (18.3 M) has a density of 1.84 g/mL.

lianna [129]

The number of mole sulphuric acid in each mL of solution is 0.0183 mol/mL.

<h3>What is concentration?</h3>

Concentration in chemistry is calculated by dividing a constituent's abundance by the mixture's total volume.
Mass concentration, molar concentration, number concentration, and volume concentration are four different categories of mathematical description.
Any type of chemical mixture can be referred to by the term "concentration," however solutes and solvents in solutions are most usually mentioned.
There are different types of molar (quantity) concentration, including normal concentration and osmotic concentration.

<h3>How is concentration determined?</h3>

Subtract the solute's mass from the total volume of the solution. Using m as the solute's mass and V as the total volume of the solution, write out the equation C = m/V.
To get the concentration of your solution, divide the mass and volume figures you discovered and plug them in.

Learn more about concentration here:

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6 0

2 years ago

How many ml of a 0.50m solution of hno3 solution are needed to make 500 ml of 0.15m hno3

Anna71 [15]

Answer:

150.0 mL.

Explanation:

It is known that the no. of millimoles of HNO₃ before dilution = the no. of millimoles of HNO₃ after dilution.

∵ (MV) before dilution = (MV) after dilution.

<em>∴ V before dilution = (MV) after dilution / M before dilution</em> = (0.15 M)(500.0 mL)/(0.50 M) = <em>150.0 mL.</em>

7 0

3 years ago

The smallest unit of an element that retains all the characteristics of that element is called a(n)

Maksim231197 [3]

<span>The smallest unit of an element that retains all the characteristics of that element is called an A. atom.
Atoms consist of protons, electrons, and neutrons, but they are particles and don't have the characteristics of the element which is why D is incorrect. B and C are not the smallest units - atoms are smaller than them.
</span>

3 0

3 years ago