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Karo-lina-s [1.5K]
3 years ago
12

Which of the following utilize electromagnetic induction to operate?   

Physics
1 answer:
11111nata11111 [884]3 years ago
7 0
The first two in a way use indiction.  A generator causes an induced voltage on the output terminals by rotating a coil in a magnetic field (Faraday's Law of magnetic induction).  A telephone microphone has a membrane that is excited (moved) by sound waves and on the back of this membrane is a magnet.  The magnet is placed inside the core of a coil of wire that has a voltage induced in it by the changing magnetic flux through the loop as it vibrates.
A turbine is moved by fluids or air, and while they can drive generators they themselves do not require induction to operate
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The atomic mass of an atom do not contain electrons because
Dimas [21]

Answer:

Electrons are so small that it does not affect the mass of atom .

Explanation:

Electrons are much smaller in mass than protons, weighing only 9.11 × 10^-28 grams, or about 1/1800 of an atomic mass unit. Therefore, they do not contribute much to an element's overall atomic mass.

7 0
3 years ago
Think about your displacement at three different times throughout your day and compare it with the distance you traveled.
Paul [167]

-- The first thing I do when I wake up is go STRAIGHT to the bathroom.   Up to that time, my displacement is equal to distance I traveled from my bed.

-- Once I'm relaxed and back in my room, dithering around and getting dressed, the distance I've traveled since I woke up is growing and growing, but my displacement is staying pretty steady, because I'm still hanging right around my bed.

-- I walk to school, walk between classes, maybe run around the track a couple times, walk to the lunchroom and back to classes, then walk home.  By dinner time, my distance traveled during the day might be 3 or 4 MILES, but my displacement is only one floor down from my bedroom to the kitchen.

-- After my homework is done, I slide back into my warm bed and turn out the light.  My displacement for the day is now zero !  The straight-line distance from the place I started to the place I finished is zero.

6 0
4 years ago
If an object is moving at 2m/s towards a porcelain vase, do you think it will have enough momentum to brake the vase?
Alex Ar [27]

Answer: No

Explanation:

Momentum p refers to how much force is needed to change the motion of a body or object by changing its direction or braking it. In addition, momentum is directly proportional to the mass m and the velocity v:

p=mv

Now, assuming both the object and the porcelain vase have the same velocity v=2m/s but different mass, and assuming the mass of the vase is greater than the mass of the object; the momentum of the porcelain vase will be also greater than the momentum of the object.

Hence, the object will not have enough momentum to brake the vase.

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4 years ago
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Nikitich [7]
Gases, liquids, solids
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3 years ago
I have no idea how to do this
inysia [295]

double displacement

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3 years ago
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