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viva [34]
3 years ago
5

A weightlifter lifts a weight of 500 N from the ground over her head, a distance of 1.8 m. How much work has been done to move t

he weight?
Physics
1 answer:
Maksim231197 [3]3 years ago
3 0
Answer is 900N

Hope this helps c:
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This 80 kg car is moving at 20m/sec at the top where the hills radius is 100m. What is the centrifugal force?
earnstyle [38]
100 seconds is the right thing
3 0
3 years ago
Class these in chronological order of appearance in the Universe: hydrogen atom---proton---hydrogen nucleus
olganol [36]

Answer: proton, hydrogen nucleus, hydrogen atom

7 0
3 years ago
Each of the following statements is related to conductors in electrostatic equilibrium. Choose the words that make each statemen
Alexxandr [17]

Answer:

a) interior,  b) inside,   c) minor

Explanation:

In this exercise you are asked to select the correct words so that the statements have been correct

Electric charges always repel each other when they are of the same sign, in conductors this has the consequence that charges accumulate on the surface and the interior remains without electric charges.  with this we analyze the statements

a) interior

b) inside

c) minor

therefore the phrase would be:

(a) The net charge is always zero ---INTERIOR--- the surface of an isolated conductor.

(b) The electric field is always zero ---INSIDE--- a perfect conductor.

(c) The charge density on the surface of an isolated, charged conductor is highest where the surface is ---MINOR---to)

8 0
3 years ago
Who could explain the phenomenom of interference of light?​
Likurg_2 [28]

Answer:

When the waves reflected from the inner and outer surface combine they will interfere with each other, removing or reinforcing some parts of white light by destructive or constructive interference. ... This results in color.

Explanation:

this is what we studied

so basically  there is like a surface

and 2 different waves coming out of the same source

they will combine and start removing parts of the white light (which originally consists of 6 to 7 colors)

results in showing these colors

6 0
3 years ago
Which of the following graphs correctly represents the relationship between the pressure and the volume of an ideal gas that is
vazorg [7]
Well, you haven't given us much of a choice of graphs to pick from, have you.

If a sample of an ideal gas is held at constant temperature, then
its pressure and volume are inversely proportional ... the harder
you squeeze it, the smaller the volume gets, and less squeeze
produces more volume.

Actually, the product of (pressure) x (volume) is always the
same number.

The graph of that relationship is all in the first quadrant.
It starts out very high right next to the y-axis, then drops down
toward the x-axis while curving to the right and becoming horizontal,
and ends up trying to get closer and closer to the x-axis but never
actually becoming zero. 

3 0
4 years ago
Read 2 more answers
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