All categories

4 years ago

Which is true of electricity generated both from coal and from nuclear reactions?

Physics

2 answers:

aleksklad [387]4 years ago

8 0

They both release greenhouse gases, I think

Lana71 [14]4 years ago

6 0

Answer:

They both require mining.

Explanation:

Option c is correct

From the following statements, the statement which is true for both coal and nuclear reactions is that both require mining to be done. Mining in both the case is done to extract fuel used in thermal and nuclear reactors respectively. These fuel are coal and uranium respectively. Coal and Uranium both extracted deep inside the Earth Surface. These mining processes are not good for the environment as they cause all land, water and air pollution.

You might be interested in

Which gas law states that the pressure of a gas decreases when volume is increased and the temperature is unchanged?

Makovka662 [10]

<span>Boyle's Law, in short, states that the volume of a gas is inversely proportional to its pressure AS LONG AS THE TEMPERATURE REMAINS UNCHAnged </span>

6 0

4 years ago

Why is technology important for making observations

GrogVix [38]

Answer:

Technology allows us to observe things that cannot be sensed or observed by the limits of our natural senses. For example, technology allowed us to observe the first cells, without the invention of the microscope, we would have not been able to discover cells. This is how many of our theories, laws and other scientific facts were discovered.

Not only that, when it comes to objective measurements or observations, technology can be more precise.

7 0

3 years ago

If the velocity of a pitched ball has a magnitude of 44.5 m/sm/s and the batted ball's velocity is 55.5 m/sm/s in the opposite d

Yuliya22 [10]

Incomplete question as the mass of baseball is missing.I have assume 0.2kg mass of baseball.So complete question is:

A baseball has mass 0.2 kg.If the velocity of a pitched ball has a magnitude of 44.5 m/sm/s and the batted ball's velocity is 55.5 m/sm/s in the opposite direction, find the magnitude of the change in momentum of the ball and of the impulse applied to it by the bat.

Answer:

ΔP=20 kg.m/s

Explanation:

Given data

Mass m=0.2 kg

Initial speed Vi=-44.5m/s

Final speed Vf=55.5 m/s

Required

Change in momentum ΔP

Solution

First we take the batted balls velocity as the final velocity and its direction is the positive direction and we take the pitched balls velocity as the initial velocity and so its direction will be negative direction.So we have:

$v_{i}=-44.5m/s\\v_{f}=55.5m/s$

Now we need to find the initial momentum

$P_{1}=m*v_{i}$

Substitute the given values

$P_{1}=(0.2kg)(-44.5m/s)\\P_{1}=-8.9kg.m/s$

Now for final momentum

$P_{2}=mv_{f}\\P_{2}=(0.2kg)(55.5m/s)\\P_{2}=11.1kg.m/s$

So the change in momentum is given as:

ΔP=P₂-P₁

$=[(11.1kg.m/s)-(-8.9kg.m/s)]\\=20kg.m/s$

ΔP=20 kg.m/s

3 0

4 years ago

Determine the centripetal force on a vehicle rounding a circular curve with a radius of 80 m at a constant speed of 90 km/h if t

quester [9]

Mass of the vehicle = 2000 kg
Velocity of the vehicle = 90 km/hr
= 25 m/s
Radius of the curve = 80 m
Then
Centripetal force = [2000 * (25)^2]/80
= (2000 * 625)/80
= 15625 kg m/s
= 15625 Newton second
I hope that this is the answer that you were looking for and the answer has come to your desired help.

3 0

3 years ago

Calculate the pressure when a force of 200N acts on an area of 0.05cm2<br> .

deff fn [24]

FORCE ACTING ON THE BODY , F = 200N

AREA ON WHICH THE FORCE IS ACTING , A = 0.05 CM²

= 0.05*(10⁻²)

= 0.05*10⁻² M²

TO CONVERT CM TO M * BY 10⁻²

PRESSURE = FORCE / AREA

PRESSURE = 200/0.05*10⁻⁴

= 200*10⁴/0.05

= 200*10⁴*10²/5

= 20*10⁵/5

= 4*10⁵ N/M².

HOPE THIS HELPS.

4 0

2 years ago