3 years ago

True or False: Rubbing a balloon on your head for a longer amount of time will increase the attractive force of the balloon.

Chemistry

1 answer:

Andreyy893 years ago

4 0

Answer:

Explanation:

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A car with a mass of 1,200 kilograms is moving around a circular curve at a uniform velocity of 20 meters per second. The centri

Helga [31]

The answer is 80 m.

Centripetal force (F) is a force that makes body move around a circular curve. The unit of force is N (N = kg * m/s²).
It can be represented as:
$F= \frac{m* v^{2} }{r}$
where:
m - mass
v - velocity
r - radius of the curve

We have:
m = 1,200 kg
V = 20 m/s
F = 6,000 N = 6,000 kg * m/s²

We need radius of the curve:
r = ?

So, if <span> $F= \frac{m* v^{2} }{r}$ , then:
</span> $r= \frac{3* v^{2} }{F}$
⇒ $r = \frac{1200 kg * (20m/s)^{2} }{6000 kg*m/s^{2} }$
⇒ $r= \frac{1200*400*kg*m^{2}*s^{2} }{6000kg*m/s^{2} }$
⇒ $r= \frac{480,000m}{6000}$
⇒ $r=80m$

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4 years ago

According to the kinetic molecular theory, which statement describes an ideal gas?

djverab [1.8K]

The correct answer is option 3. There are no attractive forces between the gas particles in an ideal gas. For an ideal gas to be achieved, the molecules are far from each other as possible where no attraction or collisions happen with each molecule.

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3 years ago

How many atoms are present in 0.35 mol of carbon dioxide?

STatiana [176]

0.35 moles carbon dioxide (6.022 X 10^23/1 mole CO2) = 2.1 X 10^23 atoms of
<span> carbon dioxide </span>

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3 years ago

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Determine the volume of a cereal box that has a mass of 549.98 g and density of 1.69 g/cm3

lisabon 2012 [21]

Answer:

I used a calculator to calculate the volume: