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Elden [556K]
3 years ago
14

Benefits from fission as energy

Physics
2 answers:
lutik1710 [3]3 years ago
8 0

Answer:

It can provide cheap energy resources for the planet. ...

It offers a low-emission energy solution. ...

It works for extended periods of time. ...

It is a reliable source of energy. ...

It provides high concentrations of energy. ...

It has the lowest annual mortality rate of any energy resource.

Explanation:

Sonja [21]3 years ago
6 0

Explanation:

Low-cost energy

Although building nuclear power plants has a high initial cost, it’s relatively cheap to produce energy from them and they have low operating costs.

Reliable

One of the biggest benefits of nuclear energy is that it is a reliable power generation source.

Zero-carbon emissions

Nuclear power reactors do not produce any carbon emissions. This is a huge advantage over traditional sources of energy, like fossil fuels, which releases tons of carbon dioxide into the atmosphere.

Nuclear fusion is the holy grail of harnessing energy. If we can learn to control atomic fusion (the same reactions as those that fuel the sun), we could practically have unlimited energy.

High energy density

It is estimated that the amount of energy released in a nuclear fission reaction is ten million times greater than the amount released when burning fossil fuels

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A high-jumper, having just cleared the bar, lands on an air mattress and comes to rest. Had she landed directly on the hard grou
Hoochie [10]

Answer:

e. the air mattress exerts the same impulse, but a smaller net avg force, on the high-jumper than hard-ground.

Explanation:

This is according to the Newton's second law and energy conservation that the force exerted by the hard-ground is more than the force exerted by the mattress.

The hard ground stops the moving mass by its sudden reaction in the opposite direction of impact force whereas the mattress takes a longer time to stop the motion of same mass in a longer time leading to lesser average reaction force.

<u>Mathematical expression for the Newton's second law of motion is given as:</u>

F=\frac{dp}{dt} ............................................(1)

where:

dp = change in momentum

dt = time taken to change the momentum

We know, momentum:

p=m.v

Now, equation (1) becomes:

F=\frac{d(m.v)}{dt}

<em>∵mass is constant at speeds v << c (speed of light)</em>

\therefore F=m.\frac{dv}{dt}

and, \frac{dv}{dt} =a

where: a = acceleration

\Rightarrow F=m.a

also

F\propto \frac{1}{dt}

so, more the time, lesser the force.

<em>& </em><u><em>Impulse:</em></u>

I=F.dt

I=m.a.dt

I=m.\frac{dv}{dt}.dt

I=m.dv=dp

∵Initial velocity and final velocity(=0), of a certain mass is same irrespective of the stopping method.

So, the impulse in both the cases will be same.

4 0
3 years ago
PLZ HELP ME FAST! How does the placement of the metal coil closer or further away from the magnet affect the motor’s strength? W
love history [14]

A very long solenoid has a magnetic field inside which depends on the current in the wire and the number of turns per unit length of the solenoid. ... Adding more turns in the coil can also increase the total resistance of the wire.

3 0
3 years ago
Why is there an upward force on objects in water?
Paraphin [41]
If you'r referring to some objects, it means that the mass of the object is less than the water so it floats. If the mass of an object is greater than the mass of the water, it will sink. Compare it to a balloon, helium makes it rise, while normal air makes it sink.
4 0
3 years ago
The lettuce is scattered all over the garden.
Lisa [10]

Answer:

Explanation:

Coding is all about logic, since I do not have the actual problem from the website I will guide you on how to solve this.

Since you need to go a certain direction you will need to indicate to the character which direction to go. Next, we need to prevent the player from travelling through a wall, we can accomplish this using an IF/ELSE statement. IF the next block in that direction is a wall then do not move forward, ELSE move forward. We would call this statement every time the player tries to move in any direction. Finally, once we reach the lettuce we need to continue picking it until there is no more. To do this we use a While loop, that checks to see if there is any more lettuce, if there is it will run the code to pick up lettuce, if there is NO more then the While loop will exit. That would be the entire code.

4 0
3 years ago
shirley knott, a 65kg astronaut holds a 12kg tank of oxygen, which she throws backwards at 2.2m/s. with what speed does she move
babymother [125]

This question involves the concepts of the law of conservation of momentum and speed.

She moves with a speed of "0.41 m/s".

Applying the law of conservation of momentum to this situation, we get:

m_1u_1+m_2u_2=m_1v_1+m_2v_2

where,

m₁ = mass of shirley = 65 kg

m₂ = mass of tank = 12 kg

u₁ = initial speed of shirley = 0 m/s

u₂ = initial speed of tank = 0 m/s

v₁ = final speed of shirley = ?

v₂ = final speed of tank = 2.2 m/s

Therefore,

(65\ kg)(0\ m/s)+(12\ kg)(0\ m/s)=(65\ kg)(v_1)+(12\ kg)(2.2\ m/s)\\\\v_1=\frac{-26.4\ kg.m/s}{65\ kg}\\\\v_1=-0.41\ m/s

negative sign shows the opposite direction.

Learn more about the law of conservation of momentum here:

brainly.com/question/1113396?referrer=searchResults

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2 years ago
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