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ivann1987 [24]
3 years ago
5

1. If we want to increase the strength of an electromagnet, which 2 of

Physics
1 answer:
kap26 [50]3 years ago
4 0

Answer:

A) Have more coils of wire

F) Use a more powerful battery

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larisa86 [58]
I think d would be the answer.
3 0
3 years ago
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Two violinists are trying to play in tune. However, whenever they play their A string at the same time they hear a beat frequenc
kaheart [24]

Answer:

The possible frequencies for the A string of the other violinist is 457 Hz and 467 Hz.

(3) and (4) is correct option.

Explanation:

Given that,

Beat frequency f = 5.0 Hz

Frequency f'= 462 Hz

We need to calculate the possible frequencies for the A string of the other violinist

Using formula of frequency

f'=f_{1}-f...(I)

f'=f_{1}+f...(II)

Where, f= beat frequency

f₁ = frequency

Put the value in both equations

f'=462-5=457\ Hz

f'=462+5=467\ Hz

Hence, The possible frequencies for the A string of the other violinist is 467 Hz and 457 Hz.

4 0
3 years ago
A radar for tracking aircraft broadcasts a 12 GHz microwave beam from a 2.0-m-diameter circular radar antenna. From a wave persp
My name is Ann [436]

Answer:

915m

Hope this helps.

5 0
3 years ago
Which of the following is true about wedges?
timofeeve [1]

Answer:

wedges are a type of inclined plane.

Explanation:

i just answered :) :) :)

8 0
3 years ago
Two people are sitting on playground swings. One is pulled back 4 degrees from the vertical and the other is pulled back 8 degre
lara [203]

Answer:

They will come back at the same time.

Explanation:

The angular velocity equation of ω= \frac{V}{r} where ω is the frequency of the movement, dependent on the angle. But since swings are simple pendulums and their angles of 8 and 4 degrees are small, they will come back to their starting points at the same time.

I hope this answer helps.

4 0
3 years ago
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