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inessss [21]
3 years ago
14

Which clock do scientists use to measure time why​

Physics
2 answers:
Mashcka [7]3 years ago
5 0

Scientists use Atomic clock to measure time

Anna35 [415]3 years ago
3 0
Scientists are actually working on a type of clock that is more accurate than the atomic clocks we use today. It is called an optical atomic clock and it measures atomic oscillations using light from the visible spectrum.
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A cannonball is shot up in the air with a vertical speed of 24 miles what is the cannon balls vertical speed just before it hits
meriva

Answer:

I think it will back towards the earth because earth gravitional field will attract to Wards

8 0
2 years ago
40 POINTS EASY
11111nata11111 [884]
We know, Mechanical Energy = K.E. + P.E.
As ball is at ground, P.E. would be zero. But as it is in motion, it must have some K.E. and that is:

K.E. = 1/2 mv²
K.E. = 1/2 * 1 * 2²
K.E. = 4/2
K.E. = 2 J

In short, Your Answer would be Option B

Hope this helps!
7 0
3 years ago
What is the formula for finding your maximum heart rate
Readme [11.4K]
You can do it in two ways

1) 220-your age
2) <span>206.9-(0.67*your age)

Hope this helped :)</span>
5 0
3 years ago
Please help asdfghjkll
lara [203]

Answer:

1. B

2. B

Explanation:

1. he was the only teacher at that time that figured out that everything doesn't revolve around us. he figured it out by a telscope he made from three lens and a tube. its actually pretty cool. He found out that venus first was in front of us.

2. if the earth wasn't at a tilt, then we wouldn't have sessons, when the earth rotate around the sun, the earth is roataing at a title axis. and that changes our seesons, because if we are in south america, and we are in winter time, and south america is cold, then it means that the continent is not getting as much heat from the sun. Does that makes since, because it doesn't sound like it?

7 0
3 years ago
A solution is oversaturated with solute. Which could be done to decrease the oversaturation?
salantis [7]
Ans: Dilute the solution

Explanation:
To decrease the over-saturation, dilute the solution. Dilution<span> is the process of decreasing the solute's concentration in the </span>solution. It is<span> usually done by mixing with more solvent. In other words, to </span>dilute<span> a </span>solution<span> means to add more solvent without the addition of more solute.</span>
3 0
3 years ago
Read 2 more answers
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