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3 years ago

12

Question 1 of 5 Which term describes a measurement of the movement of atoms or molecules within an object? O A. Temperature O B.

Heat O C. Pressure O D. Density

1 answer:

Fittoniya [83]3 years ago

7 0

Answer:

Temperature

Explanation:

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A machinist with normal vision has a near point at 25 cm. The machinist wears eyeglasses in order to do close work. The power of

Alik [6]

Answer:

17.4 cm

Explanation:

Power of lens = +1.75 diopters

Focal length of lens

$f=\frac{100}{1.75}=\frac{400}{7}$

This is a convex lens as focal the diopter given is positive which makes the focal length positive. Image distance will be negative.

v = -25

$\frac{1}{v}-\frac{1}{u}=\frac{1}{f}\\\Rightarrow \frac{1}{-25}-\frac{1}{u}=\frac{1}{\frac{400}{7}}\\\Rightarrow -\frac{1}{u}=\frac{7}{400}+\frac{1}{25}\\\Rightarrow \frac{1}{u}=-\frac{7}{400}-\frac{1}{25}\\\Rightarrow \frac{1}{u}=-0.0575\\\Rightarrow u=-17.4\ cm$

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What obstacles or challenges are encountered in magnetic levitation?

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Mike Hawk Moe Lester Hugh Janice

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How do electromagnetic waves differ from mechanical waves?

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2. Which is a possible unit of mass?<br> gram<br> liter<br> meter

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Answer:

Gram

Explanation:

Meter is a unit used to measure length and liter is used to measure liquids therefore using process of elimination the answer has to be gram

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