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2 years ago

Geometry help please :(

Mathematics

1 answer:

jekas [21]2 years ago

8 0

Answer:

you need to show da photo

Step-by-step explanation:

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If 2.5 mol of dust particles were laid end to end along the equator, how many times would they encircle the planet? The circumfe

Natalka [10]

Answer:

They encircle the planet $3.76\times 10^{11}$ times.

Step-by-step explanation:

Consider the provided information.

We have 2.5 mole of dust particles and the Avogadro's number is $6.022\times 10^{23}$

Thus, the number of dust particles is:

$2.5\times 6.022\times 10^{23}=15.055\times 10^{23}$

Diameter of a dust particles is 10μm and the circumference of earth is 40,076 km.

Convert the measurement in meters.

Diameter: $10\mu m\times \frac{10^{-6}m}{\mu m} =10^{-5}m$

If we line up the particles the distance they could cover is:

$15.055\times 10^{23}\times 10^{-5}=15.055\times 10^{18}=1.5055\times 10^{19}$

Circumference in meters:

$40,076km\times \frac{1000m}{1km}=40,076,000 m$

Therefore,

$\frac{1.5055\times 10^{19}}{40,076,000} = 3.76\times 10^{11}$

Hence, they encircle the planet $3.76\times 10^{11}$ times.

8 0

2 years ago

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sergiy2304 [10]

Answer:

0ppppppppppppppppppppppppppp

7 0

2 years ago

Can someone please help

USPshnik [31]

Answer:

-40

Step-by-step explanation:

Since x is 10 you need to multiply 10*-4 which equals -40.

8 0

2 years ago

Give the coordinates and quadrant of Point Z.

FinnZ [79.3K]

<h2>Step-by-step explanation:</h2>

The two axes divide the plane into four sections called "quadrants". The quadrants are labelled with Roman numerals (not Arabic numerals), starting at the positive x-axis and going around anti-clockwise:

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2 years ago

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Jasmin's dog weighs 66 pounds. Her vet told her that a healthy weight for her dog would be less than or equal to pounds.

wel

Answer: 3 weeks

Step-by-step explanation:

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2 years ago