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Vsevolod [243]
3 years ago
15

A box is being moved with a velocity v by a force p (parallel to v) along a level horizontal floor. The normal force is FN, the

kinetic firictional force is fk, and the weight of the box is mg. Decide which forces do positive, zero, or megative work. Provide a reason for each of your answers
Physics
1 answer:
Andrej [43]3 years ago
6 0
La neta no se no hablo inglés
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Almost all telescopes have a circular mirror. The area of a circle is proportional to r^2 where r is the radius of the circle, the constant of proportionality being 4\pi
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A circuit with resistive elements of 220, 100, 57, and 43 produce what total resistance?
Korvikt [17]

The total resistance is 420 ohm.

A circuit with resistive elements of 220, 100, 57, and 43 produce what total resistance  

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What is resistance and its types?

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What causes resistance?

An electric current flows when electrons move through a conductor, such as a metal wire. The moving electrons can collide with the ions in the metal. This makes it more difficult for the current to flow, and causes resistance.

Learn more about resistance:

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#SPJ4

8 0
1 year ago
The diagram shows forces acting on a boat.
Greeley [361]
A

I hope this helps!!:)
7 0
3 years ago
A child pulls a sled up a snow covered hill. If the child does 504J of work on the sled while pulling the sled 23m up the hill t
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Explanation:

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