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Sophie [7]
2 years ago
10

Four compasses are placed around a wire, as shown. What is the best conclusion that can be drawn?

Physics
2 answers:
Usimov [2.4K]2 years ago
5 0

The best conclusion that can be drawn is that D) A current does not flow in the wire

Sati [7]2 years ago
5 0

Answer: The correct answer is (D).

Explanation:

If the current is flowing in the wire then the compass shows the deflection due to the magnetic field around the current flowing wire.

In the given problem, four compasses are placed around a wire, as shown in the given figure. The compass is not showing any deflection. It means that there is no magnetic field around the wire. It can be concluded that the current is not flowing in the wire.

Therefore, the correct option is "A current does not flow in the wire".

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Who was th efirst person to come up with the idea of the atoms.
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Answer:

Democritus

Explanation:

Democritus was a Greek philosopher who was the first person to use the term atom . However ,John Dalton was the first to adapt Democritus’ theory into the first modern atomic

model

7 0
2 years ago
An observer notices that 12 waves pass by in 4 seconds. What is the frequency of these waves? 0.33 Hz 16 Hz 48 Hz 3 Hz
Dennis_Churaev [7]

Answer:

Frequency = 3 Hz

Explanation:

Frequency is a measure of Hertz. Recall that Hertz is the unit expressing cycles/second, where one second is the denominator of the fraction for simplicity. If there are 12 waves every four seconds, and one wave represents one cycle, dividing 12 waves by 4 seconds will give the answer of 3 waves (or cycles) per one second.

8 0
2 years ago
State an advantage of using such hydraulic jack to lift a load ​
expeople1 [14]

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Explanation:

You are going to lift and press down on the 200 N many times and move only a short distance. The reward is that slowly but surely you will lift a very heavy load -- one that cannot be managed any other way but by the hydraulic jack.

5 0
2 years ago
A sled is pulled up to the top of a hill. At thetop of the hill the sled is released from rest and allowed to coastdown the hill
Stolb23 [73]

Answer:

a.) the speed at the bottom is greater for the steeperhill

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since the energy at the bottom of the steeper hilis greater

mgh =\frac{1}{mv^2}

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8 0
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Cheetah mothers perform a number of different behaviors. They and their cubs stay in one place for only four days, moving on bef
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