4 years ago

What exactly does it mean to say an object is polarized

1 answer:

5 0

It means that it has a force to make something go in one directions only
if a metal is polarized it means it has a pith pole and a north pole like a magnet

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It took 500 N of force to push a car 4 meters. How much work was done?

djverab [1.8K]

Answer:

200 J

Explanation:

W = F S

W= 500 x 4

W = 2000

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3 years ago

How far can you ride your bike if you ride for 10 min at a speed of 150 m/min

Contact [7]

Answer: 1500metres

Explanation: the formula for distance is speed × time which equals 150m/min × 10 min = 1500m

This formula can be rearranged...

Speed = Distance ÷ time.

Time= Distance ÷ speed.

Distance= Time × speed.

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3 years ago

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Energy can be transformed from one form to another. The diagram shows one such process. Which energy transformation is represent

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The answer is A:

nuclear to thermal and radiant

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4 years ago

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A meteor falls from the sky to the Earth. The meteor already had an initial velocity downward when it

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3 years ago

A tall cylinder contains 25 cm of water. Oil is carefully poured into the cylinder, where it floats on top of the water, until t

Fed [463]

Answer: $377.3\ kPa$

Explanation:

Given

Water column height $h=25\ cm$

After oil is poured, the total height becomes $h'=40\ cm$

Pressure at the bottom will be the sum due to the water and oil column

Suppose the density of the oil is $\rho=900\ kg/m^3$

Pressure at the bottom

$\Rightarrow P=10^3\times g\times 25+900\times g\times 15\\\Rightarrow P=100g[250+135]\\\Rightarrow P=3773\times 100\ Pa\\\Rightarrow P=377.3\ kPa$

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3 years ago