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3 years ago

Which best describes nuclear fission?

Physics

2 answers:

andrey2020 [161]3 years ago

8 0

Answer:

Third option: "A nucleus collides with a neutron and splits, releasing energy."

Explanation:

When nucleus that collides with a neutron splits (fission) releases energy in the process. This is a case of fission.

This is how a fission nuclear reactor works.

larisa86 [58]3 years ago

4 0

Answer:

It be C

Explanation:

Right on edg

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Which statement best describes a commission system? A legislative body hires a leader to oversee city departments. An elected le

padilas [110]

Answer;

A legislative body oversees city departments directly.

Explanation;

City commission government is a form of local government in the United States. In a city commission government, voters elect a small commission, typically of five to seven members, on a plurality-at-large voting basis.

The commissioners constitute the legislative body of the city and, as a group, are responsible for taxation, appropriations, ordinances, and other general functions.

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3 years ago

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What kind of modulator is used in this scenario?

sladkih [1.3K]

The unmodulated carrier wave is going into the box, and when it comes out, its AMPLITUDE has been modulated.

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3 years ago

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A truck with a mass of 1810 kg and moving with a speed of 16.0 m/s rear-ends a 673-kg car stopped at an intersection. The collis

nadezda [96]

Answer:

velocity of truck = 7.32 m/s

velocity of truck = 23.32 m/s

Explanation:

mass of truck, M = 1810 kg

initial velocity of truck, U = 16 m/s

mass of car, m = 673 kg

initial velocity of car, u = 0 m/s

Let the final speed of the car is v and the final speed of truck is V.

Use conservation of momentum

Momentum before collision = Momentum after collision

M x U + m x 0 = M x V + m x v

1810 x 16 + 0 = 1810 V + 673 v

28960 = 1810 V + 673 v .... (1)

As the collision is elastic, so the coefficient of restitution is 1.

By using the formula

$e=\frac{v_{1}-v_{2}}{u_{2}-u_{1}}$

where, u1 be the initial velocity of truck, u2 be the initial velocity of the car, v1 be the final velocity of truck and v2 be the final velocity of car.

$1=\frac{V - v}}{0-U}$

V - v = - U

V - v = - 16

v - V = 16

v = 16 + V

Substitute in equation (1), we get

28960 = 1810 V + 673 (16 + V)

28960 = 1810 V + 10768 + 673 V

18192 = 2483 V

V = 7.32 m/s

v = 16 + 7.32 = 23.32 m/s

Thus, the velocity of truck after collision is 7.32 m/s and the velocity of car after collision is 23.32 m/s.

4 0

4 years ago

The

Finger [1]

Answer:

1.) 10.61 A

2.) 0.27 A

Explanation:

Given that a sinusoidal A.C has a maximum value of 15A.

1) What are its r.m.s values?

ii) If the time is recorded from the instant the current is zero and is becoming

positive, what is the instantaneous value of the current after 1/300s, given the

frequency is 50 Hz.

Solution.

1.)

The r.m.s current = peak current/root 2

The r.m.s current = 0.7071 × 15

The r.m.s current = 10.61 A

2.)

Given that

Time = 1/300 s

Frequency = 50 Hz

Instantaneous current can be calculated by using the formula

I = I sin wt

Where w = 2πf

Instantaneous current = 15( sin 2πft)

I = 15 × sin ( 2 × 3.143 × 50 × 1/300 )

I = 15 × sin ( 1.047 )

I = 15 × 0.01827

I = 0.27 A

Therefore, the instantaneous current is 0.27A

3 0

3 years ago

The process of conversion of solid into gas and again gas into solid is known as

pantera1 [17]

Sublimation is when a solid becomes a gas. And gas to solid is deposition.

6 0

4 years ago

Which best describes nuclear fission?​

Which best describes nuclear fission?