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vlada-n [284]
3 years ago
9

Three objects are kept outside for a long time on a cold day: a piece of cotton, a piece of wood, and a piece of metal. which ob

ject feels the coldest when you touch it?
Physics
1 answer:
maw [93]3 years ago
4 0
A piece of metal. I believe it is a piece of metal.
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Low-pressure areas tend to ____ before occluding and ____ after occluding
alexgriva [62]

Out of the following given choices;

a. decelerate; accelerate

b. accelerate; decelerate

c. stop; accelerate

d. decelerate; stop

<span>The answer is B.  This is because the cold front usually rotates around the warm front as cold air mass coverage in the low-pressure system. This causes the cold air mass to accelerate to catch up with the warm front. When an occluded front ( that is the boundary that separates the older cool air mass already in place from new incoming cold air mass), that the system decelerates. </span>






4 0
4 years ago
Please help<br> Need this for today
adoni [48]

Explanation:

The magnitude of centripetal acceleration is:

a = v² / r

The velocity is:

v = d/t

v = 2 × 2π (5 m) / 60 s

v = 1.05 m/s

a = (1.05 m/s)² / (5 m)

a = 0.219 m/s²

The direction is towards the center.  So at point A, the centripetal acceleration is 0.219 m/s² downward, and at point B, the centripetal acceleration is 0.219 m/s² upward.

5 0
3 years ago
A substance has a volume of 10.0 cm3 and a mass of 89 grams. What is its density?
vovikov84 [41]
Density = mass / volume

D = 89 / 10.0

D = 8.9 g/cm³

hope this helps!
8 0
3 years ago
The atomic number is equivalent to an atom's
Helen [10]

Answer:

Amount of Protons

Explanation:

If this is what you are asking for, the atomic number is equal to the amount of protons, while the atomic mass is equal to the amount of protons *plus* neutrons.

3 0
3 years ago
How far are two protons if they exert a force of 0.5 N on one another?
lord [1]

Answer:

5.08 metres

Explanation:

The both protons should be 5.08 meters apart so that force between them is equal to the weight of electron

6 0
3 years ago
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