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stich3 [128]
3 years ago
13

Which substance has a melting point greater than room temperature?

Physics
1 answer:
blagie [28]3 years ago
4 0

Answer:

I think the answer is D.)

Explanation:

If it means something needs to melt into liquid i would have gone with B.) or C.) but since it doesn't specifiy. I thought D.) since all you have to do is heat it and it melts or boils.

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Inversely proportional 
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4 years ago
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A wire carries a current of 4.1 A. How many electrons per second are passing any cross sectional area of the wire? Enter your an
aivan3 [116]

To solve this problem it is necessary to apply the concepts related to Current and Load.

The current in terms of the charge of an electron can be expressed as

i = \frac{q}{t}

Where,

q = Charge

t = time

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q = ne

Replacing in the first equation we have to

i = \frac{q}{t}

i = \frac{ne}{t}

Clearing n,

n = \frac{it}{e}

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n = \frac{i}{e}

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3 0
3 years ago
What are 7 elements from the periodic table that are named after objects in outer space
suter [353]
Helium... from the greek word helios... the sun 
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<span>uranium...after the planet uranus </span>
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5 0
3 years ago
Half of the moon is always illuminated by the sun. Given that this is true, then what causes the moon to change phases throughou
ollegr [7]

It is true that only half of the moon is always illuminated by the sun.  The reason why the moon changes it phases is because Moon orbits around the Earth, and due to this some areas of the half of the moon will not be lit by the sun.

8 0
3 years ago
What is the net force required to accelerate a 16 kg box at a rate or 1.4 m/s^2
stich3 [128]
You can use Newton's Second Law which states:
\sum \vec{F} = m\vec{a}

Plug in given information:
\sum \vec{F}=16(1.4) = 22.4N

This is closest to option b which is your answer.
8 0
3 years ago
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