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3 years ago

A scientist will (blank) his experiments to verify the results.

Physics

2 answers:

tekilochka [14]3 years ago

7 0

Answer:

a scientist will repeat his experiments to verify the results

OLga [1]3 years ago

6 0

Answer:

the answer should be B because he want to make sure he is right.

Explanation:

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One positive effect of recycling aluminum cans

GarryVolchara [31]

Your answer should be “1.”

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4 years ago

Which simple machine turns about a fixed point called a fulcrum? a pulley a lever a screw a wedge

leva [86]

Answer:

Lever

Explanation:

Fulcrum point is the point where the lever turns.

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3 years ago

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At the focal point of a converging lens, the object:

rewona [7]

Answer:

D) Image cannot be seen

Explanation:

As we know by lens formula

$\frac{1}{d_i} + \frac{1}{d_o} = \frac{1}{f}$

now we know that

object is placed at the focal point of lens

$d_o = f$

so we will have

$\frac{1}{d_i} = 0$

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4 years ago

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Describe how coal-fired power plant converts chemical energy in coal into electricity energy.

Ray Of Light [21]

Coal is burned and is used to boil water, which in turn produces steam. Now this steam is passed through nozzles. The steam turns a steam turbine. Now the turbine is coupled to a generator. Generator is an electro magnetic device used for conversion of mechanical energy into electrical energy. So in the generator a voltage difference is created and converted into electrical.

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3 years ago

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An iron vat is 11 m long at room temperature (20°C). How much longer is it when it contains boiling water at 1 atm pressure?

RoseWind [281]

Answer:

The change in length is 0.01056 m.

Explanation:

Given that,

Length = 11 m

Temperature = 20°C

Pressure = 1 atm