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Elenna [48]
3 years ago
6

How many neutrons are contained in 2 kg? Mass of one neutron is 1.67x10-27 kg.

Physics
1 answer:
pav-90 [236]3 years ago
8 0

Answer:

1.2 × 10^27 neutrons

Explanation:

If one neutron = 1.67 × 10^-27 kg

then in 2kg...the number of neutrons

; 2 ÷ 1.67 × 10^-27

There are.... 1.2 × 10^27 neutrons

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What name is given to a generator which produce alternating current ​
defon

Answer:

alternator

Explanation:

AC - Altanator

DC - Dynamo

4 0
2 years ago
Government create public policy to address issues in what three main areas?
kotykmax [81]

Answer:

  • Economic
  • Foreign
  • Social

Explanation:

-Governments create public policy to address issues in social, economic, and foreign relations.

-This policy model solves all the related problems effectively while supporting and serving the government’s policies.

-The characteristics of Public Policy may include:

  • A response to some crisis or issue that requires attention.
  • Aims at achieving certain development goals or solution to a problem.
  • Public policy is carried or done on behalf of a country's citizenry.

4 0
2 years ago
A ball is in free fall after being dropped. What willthe speed of the ball be after 2 seconds of free fall?
Mazyrski [523]

So, the speed of the ball after 2 seconds after free fall is <u>20 m/s</u>.

<h3>Introduction</h3>

Hi ! I'm Deva from Brainly Indonesia. In this material, we can call this event "Free Fall Motion". There are two conditions for free fall motion, namely falling (from top to bottom) and free (without initial velocity). Because the question only asks for the final velocity of the ball, in fact, we may use the formula for the relationship between acceleration and change in velocity and time. In general, this relationship can be expressed in the following equation :

\boxed{\sf{\bold{a = \frac{v_2 - v_1}{t}}}}

With the following conditions :

  • a = acceleration (m/s²)
  • \sf{v_2} = speed after some time (m/s)
  • \sf{v_1} = initial speed (m/s)
  • t = interval of time (s)

<h3>Problem Solving</h3>

We know that :

  • a = acceleration = 9,8 m/s² >> because the acceleration of a falling object is following the acceleration of gravity (g).
  • \sf{v_1} = initial speed = 0 m/s >> the keyword is free fall
  • t = interval of time = 2 s

What was asked :

  • \sf{v_2} = speed after some time = ... m/s

Step by step :

\sf{a = \frac{v_2 - v_1}{t}}

\sf{(a \times t) + v_1 = v_2}

\sf{(10 \times 2) + 0 = v_2}

\boxed{\sf{v_2 = 20 \: m/s}}

So, the speed of the ball after 2 seconds after free fall is 20 m/s.

8 0
2 years ago
A tsunami is typically formed when there is a earthquake in the ocean. The displacement of water causes extreme flooding. True o
alisha [4.7K]

Answer:

True

Explanation: Tsunami is a huge displacement of water caused by Earthquakes which took place on inside the sea floor causing extreme flooding and damages to life and tsunami is more prominent in the Pacific Ocean and Indonesia mainly because of the presence of active earthquake zones beneath the ocean. Tsunami has also been observed in the Mediterranean Sea and also in the United States around the year 1933.

6 0
3 years ago
State the particles of matter​
OleMash [197]

Answer:

Matter can exist in one of three main states: solid, liquid, or gas. Solid matter is composed of tightly packed particles. A solid will retain its shape; the particles are not free to move around. Liquid matter is made of more loosely packed particles.

7 0
2 years ago
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