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sveta [45]
2 years ago
9

What is the net force in the following diagram?​

Physics
1 answer:
ValentinkaMS [17]2 years ago
5 0
I don’t see a diagram
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Electrical power companies sell electrical energy
mixer [17]

Heat used by electric heater :

Q = m • c • ∆T

Q = (75 kg)(4200 J/kg°C)(43°C - 15°C)

Q = 8.82 × 10⁶ J

Cost of electrical energy :

Cost = (8.82 × 10⁶ J)/(3.6 × 10⁶ J) • ($ 0.15)

Cost = $ 0.3675

4 0
2 years ago
J.J. Thomson discovered the electron by noticing that: A. molecules with the same atoms exhibited the same chemical properties.
GenaCL600 [577]

J.J. Thomson discovered the electron by noticing that a beam of particles could be influenced by an electric or magnetic force.. That is option B.

<h3>What is an electron?</h3>

An electron can be defined as the part of an atom that is negatively charged and is found revolving round the nucleus of an atom.

J.J. Thomson was the scientist that discovered electrons through subjecting two oppositely-charged electric plates around the cathode ray.

He noticed that the particles where deflected by both the magnetic and electric fields.

Learn more about cathode rays here:

brainly.com/question/4441361

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4 0
2 years ago
What is the reactive force when a fish swims through water?
natima [27]
The answer is D

This is an example of Newton's third law of motion.

The active force is the fish against the water, so the reactive force would be the reverse, the equal force of the water on the fish.
7 0
3 years ago
I Science Sem 1
Sonbull [250]

Answer:

Force, F = 124 N

Explanation:

We have,

Mass of bicycle is 12 kg and mass of rider is 50 kg

Total mass of the system is 12 kg + 50 kg = 62 kg

Acceleration of the system is 2 m/s²

It is required to find the force required to accelerate the system. The force acting on an object is given by :

F=ma\\\\F=62\ kg\times 2\ m/s^2\\\\F=124\ N

So, the force of 124 N is acting on the system.  

7 0
3 years ago
What is nuclear power
katrin2010 [14]

Answer:

<h2><em><u>D. All of the statements describe nuclear power</u></em></h2>

What is <em><u>NUCLEAR</u></em><em><u> </u></em><em><u>POWER</u></em><em><u>?</u></em><em><u> </u></em>

➡️ is the <u>use of nuclear</u> <u>reactions</u> to <u>produce electricity</u>.

➡️ it can be <u>obtained from nuclear</u> <u>fission, nuclear decay and nuclear fusion reactions. </u>

Hope it helps

3 0
2 years ago
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