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3 years ago

Which of the following describes nuclear fission?

2 answers:

7 0

Good morning!

<span>It requires extremely high temperatures to begin the reaction.

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While nuclear fusion involves the union of atoms, fission is the breaking of an atomic nucleus into two smaller parts. For this to happen it is necessary that the atom reaches a very high temperature.
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kvv77 [185]3 years ago

5 0

Answer: The correct answer is its chain reactions can be initiated by neutrons.

Explanation: There are 2 types of nuclear reactions:

1. Nuclear fission reaction: In these type of reaction, one larger nuclei breaks down into two or more smaller nuclie's. Its chain reaction is initiated when the nucleus is struck with neutrons.

2. Nuclear fusion reactions: In these type of reaction, two small nuclei combine together to form a single large molecule. This type of reaction requires high temperature to occur.

Both these reactions occur due to the change in the nuclei of an atom.

From the above information, the nuclear fission chain reactions re initiated by the neutrons.

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Using the same sample of gas (P1 = 565 torr , T1 = 27 ∘C ), we wish to change the pressure to 5650 torr with no accompanying cha

Stels [109]

Answer:

2726.85 °C

Explanation:

Given data:

Initial pressure = 565 torr

Initial temperature = 27°C

Final temperature = ?

Final pressure = 5650 torr

Solution:

Initial temperature = 27°C (27+273 = 300 K)

According to Gay-Lussac Law,

The pressure of given amount of a gas is directly proportional to its temperature at constant volume and number of moles.

Mathematical relationship:

P₁/T₁ = P₂/T₂

Now we will put the values in formula:

T₂ = P₂T₁ /P₁

T₂ = 5650 torr × 300 K / 565 torr

T₂ = 1695000 torr. K /565 torr

T₂ = 3000 K

Kelvin to degree Celsius:

3000 K - 273.15 = 2726.85 °C

4 0

3 years ago

Cats or dogs...? I need to know. V.S.

Blizzard [7]

Answer:

dogs

Explanation:

6 0

3 years ago

Read 2 more answers

Constance has an apple that weighs 85,000 milligrams and a peach that weighs 0.15 kilograms. which fruit has the greater mass? c

Rama09 [41]

The fruit which has the greater mass is peach i.e. 150 grams.

Mass is a quantity which is used to define that what amount of substance will occupy any space or present in the given object.

We have given,

Weight of apples = 85,000 mg

Weight of peach = 0.15 kg

To compare the quantity first we have to convert both of these units in the same unit, and we know that:

In 1 kilogram = 1000 grams

And in 1 grams = 1000 milligrams

So, we convert both the units into grams as:

85,000 mg = 85,000 / 1000 = 85 grams

0.15 kg = 150 grams

So, the mass of peach is high.

Hence, peach has the greater mass.

To know more about mass, visit the below link:

brainly.com/question/15526412

4 0

2 years ago

PLEASE HELP 100!!!!! POINTS

insens350 [35]

i will ans the 2nd part first:

heat sources 4 homes: those wuld be renewable resources that generate heat. They include geothermal, solar water-heating and bio-mass.

primarily produce electricity: those wuld be something that is big like a dam for hydroelectric, wind turbine for electric generation, and solar farm for electricity.

4 0

3 years ago

Read 2 more answers

What is the momentum of a 50-kilogram ice skater gliding across the ice at a speed of 5 m/s

chubhunter [2.5K]

Momentum is a term used to quantify the motion of an object has. It is calculated as the the product of the object's mass and the velocity. It is expressed as:
Momentum = m x vMomentum = 50 kg x 5 m/sMomentum = 250 kg m/s
Therefore, the correct answer is the last option.

6 0

3 years ago