3 years ago

A car is moving eastward and speeding up. the momentum of the car is

Physics

1 answer:

amm18123 years ago

6 0

Accelerating.. I hope that’s the answer your looking for

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What were some major reasons for the american television from analog broadcast to digital broadcast?

Vika [28.1K]

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Explanation:

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3 years ago

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Sandy is on a road trip. She leaves at 8:00 AM. It takes her 2 hours to drive 200 kilometers. She stops at a rest stop for half

lutik1710 [3]

The average velocity of Sandy is given by the total distance covered S divided by the total time taken t:
$v= \frac{S}{t}$

The total distance covered is
$S=200 km+0+100 km=300 km$
while the total time taken is 2 hours + half an hour (for the rest) + 1 hour and half, so
$t=2h+0.5h+1.5 h=4 h$
Therefore, the average velocity is
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3 years ago

How does an atom of chlorine-37 become a chloride ion with a -1 charge?

kirill115 [55]

Answer:

B. The atom gains 1 electron, to make a total of 18 electrons.

Explanation:

Chlorine is the 17th element in the periodic table, so it has atomic number 17:

Z = 17

This means that a neutral atom of chlorine has 17 protons and 17 electrons.

When a chlorine atom gains 1 electron, its electric charge (initially zero) becomes -1, since the electron has negative charge of -1 (in elemntary charge units). This also means that the number of electrons in the ion is now

17 + 1 = 18

So the correct answer is

B. The atom gains 1 electron, to make a total of 18 electrons

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3 years ago

A piece of wood has mass of 250g and volume of 400cm cubed. what is its density

Zigmanuir [339]

Answer:

$0.625 \: g {cm}^{ - 3}$