3 years ago

What career field/job would utilize ppm units

Chemistry

1 answer:

Ierofanga [76]3 years ago

4 0

Jobs in analytical chem tht is because it’s parts per million and when calculating the amount of an element in a mole

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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

A box is pushed across the floor for a distance of 5 metters with a force of 50N in 5 seconds. a. how much work is done? b. what

Reptile [31]

Answer:

50W

Explanation:

The formula and is

W = F × s

(force x distance)

W= 50 N× 5 m =250 N m=250 J

Done in 5 seconds the power is

where

=time

250

50 J

=50 W

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3 years ago

Read 2 more answers

Differentiate between mass, volume, and density. Explain why only changing the shape of an object would have no effect on its de

Anni [7]

Mass is how much matter is in an object. Volume is how much space an object occupies. Density is the amount of mass in a volume.

Have a nice day, brainliest would be fantastic

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3 years ago

What ion must be present for a compound to be considered a base?

Alexeev081 [22]

It is OH- (hydroxide ion)

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4 years ago

Please help I need the answer by today and it is very important! Which of the following statements best describes why the mass o

Juliette [100K]

D, because matter does not change in space but unlike gravity, which changes, matter, is the mass of it, which will stay the same unless there is a chemical change or, physical change, but not in this case, so the answer you are looking for is D. hope this enlarged your understanding and knowledge.

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3 years ago