3 years ago

Give an example of forces adding together

Physics

1 answer:

hammer [34]3 years ago

5 0

Two forces are magnets

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a piece of iron with a temperature of 300 degrees Celsius is dropped into a gallon of water with a temperature of 25 degrees Cel

notka56 [123]

Heat will be transferred from iron to water, because heat flows always from the higher temperature system to the lower temperature system.

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3 years ago

A small circular loop of 5 mm radius is placed 1 m away from a 60-Hz power line. The voltage induced on this loop is measured at

marin [14]

Answer:

i = 101.4A

Explanation:

The steps to the solution can be found in the attachment below.

We have been given the frequency f = 60Hz. From this we can calculate the angular frequency of the power line.

It is assumed that sinwt = –1 in order to calculate the time varying current. Although the magnitude of the current is large, consideration should also be given to the distance between the coil and the power line. The induced emf is small considering the area of the coil which is 7.85×10-⁵m².