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Zarrin [17]
3 years ago
13

Which is a source of AC current? A) a battery B) a generator C) chemical cells wired in series D) chemical cells wired in parall

el
Physics
2 answers:
Mumz [18]3 years ago
5 0

NOOO

its B

the correct source is a generator. The others are all sources of DC, a generator uses electromagnetic induction to create AC.

koban [17]3 years ago
4 0

Answer:

B) a generator

Explanation:

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The accepted value for the density of iron is 7.87 g/cm3. a student records the mass of a 20.00 cm3 block of iron as 153.8 grams
dangina [55]
The density of an object can be calculated using the formula Density = Mass/Volume.

Experimental Density:

Density = 153.8g / 20.00 cm^3
Density = 7.69g/cm^3

Percent error equation:

% Error = | Theoretical Value - Experimental Value|/Theoretical Value * 100
% Error = | 7.87g/cm^3 - 7.69g/cm^3|/7.87g/cm^3 * 100
% Error = 2.29%

Therefore a is the correct answer.
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2 years ago
1. In what type of ecosystem can monkeys population be found?
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I, thank you for posting your question here at Brainly.

Here are the answers to your questions:

1. Monkeys live in tropical rainforest ecosystems.
2. Animals should be left alone in nature to take part in the balance of the ecosystem, and not upset it. A sudden increase of monkey population, probably due to destruction of rainforests which lead to lesser area of living for them. 
3. Monkeys take a huge part in seed dispersal among flesh fruit plants. Without them, it will greatly affect the conservation of the forests.
3 0
3 years ago
Which of the following is a characteristic of electromagnetic waves? (2 points)
hjlf
What’s the answer choices to pick from?
4 0
3 years ago
What explains the dramatically different magnitudes of accelerations that result when a mosquito collides head on with a moving
Evgen [1.6K]

Answer:

Mass of the vehicle and small bug.

Explanation:

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Learn more about Newton's law.

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A student wants to design an experiment to study the transformation of mechanical energy. Which object can be used to investigat
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2 years ago
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