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Julli [10]
2 years ago
8

Selena drew a diagram to show how current moves in a loop of wire that is placed between two magnets. At top left a piece of mag

net labeled N and at top right a piece labeled S. Between these a square coil of wire with green arrows at its ends away from the magnets pointing away from the magnets. Red arrows point from N to S. Which best explains how Selena can correct her error? She can change the magnets so like poles are facing each other. She can change the arrows so they show current traveling in opposite directions on the sides of the loop. She can change the arrows so they show the magnetic field reversing direction between the magnets. She can change the magnetic poles so they are both on one side of the loop.
Physics
2 answers:
Step2247 [10]2 years ago
7 0

Answer:

its d

Explanation:

i answered b and got it wrong. d is the correct answer

OLEGan [10]2 years ago
5 0

Answer:

B on Edge 2020

She can change the arrows so they show current traveling in opposite directions on the sides of the loop.

Explanation:

Just took the test haha

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What is the magnitude of the detected sound frequency shift from 170 Hz during the projectile flight described in the passage?
Serhud [2]

Answer:

The magnitude of the frequency shift (that is the change in frequency) first falls to zero, then increases. This is so because as the projectile moves upward, the position of the sound source is constantly changing and as a result there would be a difference between the frequency of the sound emitted and the sound received by the microphone (that is the frequency shift). A point will be reached in the projectile's motion when the projectile will be momentarily at rest. (At the highest point reached in its flight h).

Explanation:

At this point, the frequency emitted by the source becomes equal to that received by the microphone. This can be seen from the equation 2 for Doppler effect contained in the attachment below.

This moment is short lives and the projectile soon starts a return journey downward under the influence of gravity. The velocity of the projectile is negative ( v < 0 ) and from the equation can be confirmed that the frequency received by the microphone increases as the projectile fall under gravity. This is so because as the projectile falls downward it velocity becomes more and more negative. And from the equivalent in the picture below, the frequency received by the microphone increases

Thank you very much and I hope this was helpful.

5 0
3 years ago
Per single gallon of gas, Gina's vehicle can go 16 more miles than Amanda's vehicle. If the combined distance the vehicles can t
77julia77 [94]
The answer is D. 44 miles

That's because if we take one vehicle to be X, and another to be X + 16, then to calculate X + Y = 72 we can write it down as <span>x + (x+16)=<span>72

Then we have 2x + 16 = 72
2x = 56
x = 28

The result is then D because </span></span>
28 + 16 = 44.
8 0
3 years ago
NO LINKS!!!!!! Help its urgent, PLEASE HELP!!!!!!!!!!!!!!!!
Firlakuza [10]

Answer: I would say B. Dairy

Explanation: Apple is in the fruit group. Grilled chicken breast is in the protein group. Whole white rice is in the whole grains group and string beans are in the vegetable group.

8 0
3 years ago
consider two charges. one has a charge of +15.mC and the other a charge of -3.00mC. if the electrostatic force between these cha
Dima020 [189]

Answer:164.3metre

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8 0
3 years ago
Describe how sound waves are produced by the drum and then heard.
Tamiku [17]

Answer:

The material stretched across the drum vibrates to produce the sound waves.

Explanation:

A drum is one of the oldest musical instrument made by man. It is made of a hollow body over which a material such as skin is stretched. When a drum is struck with a stick, the material vibrates up and down. This makes the air above the drum to contract and relax rhythmically resulting in soundwaves. The soundwaves travel through air to reach our ears where they are heard.

The quality of sound produced by  a drum is affected by its shape. A larger drum produces a lower pitched sound.

4 0
3 years ago
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