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dangina [55]
3 years ago
5

Who was the first scientist to question the idea that atoms were uncuttable

Physics
1 answer:
gizmo_the_mogwai [7]3 years ago
5 0

Answer:

Democritus

Explanation:

He called these "uncuttable" pieces atomos. This is where the modern term atom comes from. Democritus first introduced the idea of the atom almost 2500 years ago.

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If a rock sample has a mass of 1.17 g and a volume of 0.33 cm3, what type of rock is it?
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The correct answer is diamond

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What physical property makes metal pots good for cooking
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The metal conducts the heat, which makes cooking easier.
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Give an example of when a conscientious objector might exercise their right:
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Which mineral is commonly pinkish and has light-colored, wavy lines? A) quartz B) potassium feldspar C) pyroxene D) amphibole D)
Nina [5.8K]

Answer:

option B

Explanation:

The correct answer is option B

the mineral which is pinkish and light in color with wavy lines is potassium feldspar .                                                      

pyroxene is a mineral is typically dark in color generally it's color is  dark green.                                                                  

amphibole is also dark in color an is in green color.

olivine is a mineral which is in olive green color.

Quartz is a mineral which is light colored and it is also pink in color but it does not have wavy line.

4 0
3 years ago
In question 8 from “Problems 2”, you calculated that an archery arrow shot with an initial velocity of 45 m/s at an angle of 10
Zigmanuir [339]

The distance traveled by the arrow and horizontal velocity are directly proportional, thus when the distance increases, an increase in initial velocity will allow the arrow to hit the target.

<h3>Time of motion of the projectile</h3>

If the horizontal distance the projectile would travel before hitting the target is 70.67 m, the time of motion of the projectile is calculated as;

X = Vx(t)

t = X/Vx

t = X/Vcosθ

t = (70.67) / (45 x cos10)

t = 1.6 s

When the archery target is moved further away from the archer, the archer needs increase the initial velocity of the arrow assuming the angle of projection is constant.

Since the distance and horizontal velocity are directly proportional to each other, thus when the distance increases, an increase in initial velocity will allow the arrow to hit the target.

Learn more about velocity of projectile here: brainly.com/question/12870645

6 0
2 years ago
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