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Oliga [24]
2 years ago
11

Explain briefly work energy and power

Physics
1 answer:
Rufina [12.5K]2 years ago
4 0

Answer:

Work can be defined as transfer of energy.

Energy can be defined as the capacity for doing work

Power is the work done in a unit of time.

Explanation:

Work can be defined as transfer of energy. In physics we say that work is done on an object when you transfer energy to that object.

Power is the work done in a unit of time. In other words, power is a measure of how quickly work can be done.

Energy can be defined as the capacity for doing work. The simplest case of mechanical work is when an object is standing still and we force it to move

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1.5 m/s is the velocity. 9.3 m is the length of aisle, over which Distance will be covered. Time is demanded in which the child will move the cart over the aisle with 1.5 m/s. v=S/t and, t=S/v Put values, t=9.3/1.5=6.2 s
7 0
2 years ago
Swinging a tennis racket against a ball is an example of a third class lever. Please select the best answer from the choices pro
kari74 [83]
that statement is true

a Third class lever applied when the effort place between the load and the fulcrum.

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7 0
3 years ago
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If a fisherman applies a horizontal force with magnitude 47.0 NN to the box and produces an acceleration of magnitude 3.20 m/s2m
musickatia [10]

Answer:

The correct solution is "14.6875 kg".

Explanation:

Given values:

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Acceleration,

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Now,

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or,

⇒       F=ma

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⇒       m=\frac{47.0}{3.20}

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4 0
2 years ago
if a kid is practicing for a play and there is an auditorium of loud people that are shouting, and he screams, he hears and echo
Vilka [71]
Because the sound waves are being observed by the people that are there and it is not empty as in an empty place the sound waves will come back to you.
5 0
3 years ago
Where are the most reactive nonmetal elements found on the periodic table?
Sindrei [870]

Answer;

At the top of group 17

Explanation;

Reactivity in chemistry deals with whether something will react with another substance. The reactivity of an element can be predicted based on its location on the periodic table.

The most reactive nonmetal is fluorine. Fluorine is a halogen, which is Group 17 on the periodic table, and the halogens are the most reactive nonmetals. This is because they all have one empty space in their valence electron shells. Of the halogens, fluorine's empty space is closest to the positively charged nucleus. This means it pulls harder on another atom's electrons to fill that empty space.

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3 years ago
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