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hammer [34]
3 years ago
11

Okay, I have three more questions.

Physics
2 answers:
Blababa [14]3 years ago
5 0
When a liquid or a gas is heated, it expands and becomes less dense, so it rises, while the cooler, denser liquid or gas sinks. (Not sure if this helps but this is what I hit)
Solnce55 [7]3 years ago
4 0
1. Less
2. More
3. Convection current
I am unsure if 3 is correct
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Determine the kinetic energy of a 1000-kg roller coaster car that is moving with a speed of 20.0 m/s
erastovalidia [21]

Answer:

2*10^{5}

Explanation:

Kinetic energy = \frac{1}{2} M V^{2}

M is mass

V is velocity

K.E. = \frac{1}{2} * 1000 * 20^{2}  

K.E. = 2*10^{5}

8 0
3 years ago
Gravity is a force between any two objects with mass wht doesn’t a person feel a gravitational force between them herself and an
kipiarov [429]
It is because both of them are attracted towards earth where the heavier body gravity field influence is more in comparision to small. For eg; there are two magnet with less power in besides of huge power or magnetic influence then both of the less power magnet are attracted towards the huge one rather than attracting themselves.


Hope its helps u!
6 0
3 years ago
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Zinaida [17]

Answer:

The chemical is the same but the concentration is different.

The chemical is more dangerous in its highly concentrated form.

Although the chemicals are the same, they require different handling procedures. Therefore specific information should be available for each.

Explanation:

3 0
3 years ago
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