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stepan [7]
3 years ago
6

Can someone please help me

Physics
2 answers:
Ahat [919]3 years ago
6 0
The third answer. a liter. 
Aleks [24]3 years ago
5 0
The metric unit of volume is the liter.

1 cubic meter = 1,000 liters

A liter looks a lot like a quart.  It's only about 6% bigger than a quart.

The larger-style water bottle that you might buy at the Sebm Lebm store
and carry with you when you're walking is 16.9 ounces ... that's 1/2 liter.

Those big heavy plastic soda bottles that hang around in the fridge
for several days are 2-liter bottles.
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A bike rider approaches a hill with a speed of 8.5 m/s. The total mass of the bike rider is 91kg. What is the kinetic energy of
Anestetic [448]

a) The kinetic energy (KE) of an object is expressed as the product of half of the mass (m) of the object and the square of its velocity (v²):

KE = \frac{1}{2}m* v^{2}

It is given:

v = 8.5 m/s

m = 91 kg

So:

KE= \frac{1}{2}*91*8.5^{2} =3,287.4J


b) We can calculate height by using the formula for potential energy (PE):
PE = m*g*h

In this case, h is eight, and PE is the same as KE:
PE = KE = 3,287.4 J

m = 91 kg

g = 9.81 m/s² - gravitational acceleration

h = ? - height


Now, let's replace those:

3,287.4= 91 * 9.81 * h

⇒ h = 3,287.4/(91*9.81) = 3,287.4/892.7 = 3.7 m

3 0
3 years ago
PLEASE HELP IN ONE MINUTE
Greeley [361]
I think it’s 8 hours. I’m sorry if I’m wrong.
I just did 400 divided by 50
4 0
3 years ago
I have two of these so if you think this is easy then another free ten points in my profile!
Agata [3.3K]

Answer:

z

Explanation:

x repersents a new moon and the others repersent quarter moons

(x is a new moon because new moons are often the phase when the moon is close to earths sun)

7 0
2 years ago
Read 2 more answers
"4.What determines how many figures are significant in reported measurement values? What
MAXImum [283]

As the number of significant figures increases, the more accurate or precise the measurement is.

<h3>What is significant figure?</h3>

The term significant figures refers to the number of important single digits in the coefficient of an expression in scientific notation.

Significant figures are the digits in a value that are known with some degree of confidence.

The effect of reporting more or fewer figures or digits than are significant;

As the number of significant figures increases, the more accurate or precise the measurement is.

As precision of a measurement increases, so does the number of significant figures.

Learn more about significant figures here: brainly.com/question/24491627

#SPJ1

8 0
1 year ago
The frequency of a wave is 250hz. What is the period
antoniya [11.8K]

Answer:

Hope it helps for you :)))))

8 0
2 years ago
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