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Irina-Kira [14]
2 years ago
6

I could really use some help on this question guys! Will give brainliest!

Physics
2 answers:
aev [14]2 years ago
4 0

Answer:

I think it’s the third one

REY [17]2 years ago
3 0
I think it’s the Third one , hope this helps
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To provide the pulse of energy needed for an intense bass, some car stereo systems add capacitors. One system uses a 2.4F capaci
Natasha_Volkova [10]

Answer:

Explanation:

Energy stored in a capacitor

= 1/2 CV²

C is capacitance and V is potential of the capacitor .

When capacitor is charged to 24 V ,

E₁ = 1/2 x 2.4 x 24 x24 = 691.2 J

When it is charged to 12 volt

E₂ = 1/2 CV²

.5 X 2.4 X 12 X12

= 172.8 J

3 0
3 years ago
Unlike an observational study, an experiment can prove:
Zinaida [17]

A. Cause and effect.

Explanation:

An experiment can prove cause and effect in a study unlike observational studies.

  • Observational studies is a non-experimental system of investigation.
  • It helps to identify the causes(independent variable) and the effect(dependent variables).
  • In observational studies, the variables cannot be controlled and so it is difficult to prove the cause and effect.
  • An experiment can prove cause and effect because the parameters are tested and can be controlled.

Learn more:

Experiment brainly.com/question/5096428

#learnwithBrainly

3 0
3 years ago
Please please please help me
pogonyaev

Answer:

C) seems to be the correct one

Each alpha particle emitted decreases the mass of the nucleus by 4 and decreases the atomic number by 2.

Also, each beta particle will increase  the atomic number by 1.

So if C emits 5 alpha particles the atomic mass decreases by 20 and the atomic number decreases by 10. Then emission of 2 beta particles brings the atomic number up to minus 8.

So a total of 7 particles have been emitted and the number of alpha particles emitted exceeds the number of beta particles emitted.

3 0
3 years ago
Explain how displacement depends on intial velocity and time
Amiraneli [1.4K]

Answer:

Explanation:

displacement is the shortest distance between the initial and final position and velocity is the ratio of distance to the time taken. displacement will be zero if the body comes back to its initial position

3 0
3 years ago
Pleaseee help me!!!!!!!!!!!!
cluponka [151]
B because those are all symptoms
6 0
3 years ago
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