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3 years ago

Anybody know the answer to this ?

Physics

1 answer:

Firlakuza [10]3 years ago

5 0

Answer:

4 ampere

Explanation:

I= v/R

=12/3

= 4 amp

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3 years ago

# A cheetah can start from rest and attain the velocity 72km/h in 2 seconds. Calculate the acceleration of cheetah

yan [13]

Answer:

Explanation:

Solution,

When a certain object comes in motion from rest, in the case, initial velocity = 0 m/s

Initial velocity ( u ) = 0 m/s

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Hope this helps...

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3 years ago

Which of the following determines whether light shining on a metal surface will eject electrons from that surface?

PtichkaEL [24]

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Einstein won his only Nobel Prize for his explanation of this effect.

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3 years ago

The cross section of a copper strip is 1.2 mmthick and 20 mm wide. There is a 25-A current through this cross section, with the

Naily [24]

To solve this problem it is necessary to use the concepts related to the Hall Effect and Drift velocity, that is, at the speed that an electron reaches due to a magnetic field.

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Where

I = current

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d = distance

e = charge of electron

Then using the formula and replacing,

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$V = 3.84*10^{-6}V$

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3 years ago