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schepotkina [342]
2 years ago
13

Assume that a vaulter is able to carry a vaulting pole while running as fast as Carl Lewis in his world record 100-m dash (aroun

d 12 m/s). Also assume that all of the vaulter’s kinetic energy is transformed into gravitational potential energy. What vaulting height could that person attain?
Physics
1 answer:
xeze [42]2 years ago
7 0

Answer:

hello

Explanation:

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A transformer is to be used to provide power for a computer disk drive that needs 6.0 V (rms) instead of the 120 V (rms) from th
Ipatiy [6.2K]

Answer:

N_{2}=20 turns

Explanation:

The given case is a step down transformer as we need to reduce 120 V to 6 V.

number of turns on primary coil N_{P}= 400

current delivered by  secondary coil  I_{S}= 500 mA

output voltage = 6 V (rms)

we know that

I_{p}=\frac{V_{out}}{V_{in}\times I_{s}}

putting values we get

I_{p}=\frac{6}{120\times 0.5}

I_{p}= 0.1 A

to calculate number of turns in secondary

\frac{N_{2}}{400} =\frac{6}{120}

therefore, N_{2}=20 turns

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The distiction between long and short term memory
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Why are all the different parts of the cell necessary?<br> Answer
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