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AURORKA [14]
2 years ago
10

Which two statements are true?

Physics
2 answers:
notsponge [240]2 years ago
8 0
The answer is C and I think A?
Dafna11 [192]2 years ago
6 0

Answer : A. A moving magnetic field creates an electric field

D. A moving electric field creates a magnetic field

Explanation :  

A. A moving magnetic field creates an electric field because when we move a magnet toward the coil then the emf induced in the coil that means the current induced in the coil and the induction shows the electric field .

D. A moving electric field creates a magnetic field because when charge moving or electric current passes through a conducting wire then, create the magnetic field around the wire.

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Fiora starts riding her bike at 18 mi/h. After a while, she slows down to 12 mi/h, and maintains that speed for the rest of the
lord [1]

Answer:

t = 2.5 hours

Explanation:

given,

speed of the bike for t time= 18 mi/h

final speed of the bike after t time = 12 mi/h

total distance, D = 69 miles

total time, T= 4.5 hour

time for which speed of the bike is 18 mi/h = ?

we know distance = speed x time

now,

18 x t + 12 (4.5 - t) = 69

6 t + 54 = 69

6 t = 15

t = 2.5 hours

The bike was at the speed of 18 mi/h for 2.5 hours.

4 0
3 years ago
I need help, ASAP, I know what thermal energy is, but how does a skater use it when on the track?
Flauer [41]

Answer: Looked it up but

Explanation:

When the skater lands on the track, the vertical component of his kinetic energy is converted to thermal energy. You can do experiments where there is no loss to thermal energy (only PE and KE conversions) by turning friction off and by making sure the skater doesn't leave the track.

4 0
3 years ago
Which option defines green computing?
Papessa [141]
Study and practice of environmental sustainable computing or It. such as monitors, printers, storage devices, and networking and communication systems-efficiently and effectively with minimal impact on the environment.
4 0
3 years ago
Read 2 more answers
Is the average speed of a vehicles vector or a scalar quantity? A) vectorB) scalar
11Alexandr11 [23.1K]

As the speed is a scalar quantity as it has the only magnitude in it. Therefore, the average speed is also stated as a scalar quantity.

Hence, the correct answer is (B)

3 0
11 months ago
Decide whether each statement describes mass or weight.
vova2212 [387]

<u>Mass</u>

  • Mass is measured in kilograms.
  • Mass does not change when gravity changes.
  • Mass is the amount of matter in something.

<u>Weight</u>

  • Before I answer, we have to know weight formula. Weight = mass × acceleration due to gravity.
  • Therefore, weight is measured in Newtons.
  • Weight changes when gravity changes. This is because weight is dependent on acceleration due to gravity.
  • Weight is a gravitational force.

Hope you could understand.

If you have any query, feel free to ask.

8 0
2 years ago
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