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IRINA_888 [86]
2 years ago
10

How many inches long is a football field

Chemistry
2 answers:
Dominik [7]2 years ago
8 0
120 feet usually....
Scorpion4ik [409]2 years ago
5 0
A football field which is 120 yard converts into 4320 inches
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When a 10 mL graduated cylinder is filled to the 10 mL mark, the mass of the water was measured to be 9.925 g. If the density of
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Measured volume = 10 ml 
mass = 9.925 g 
density = 0.9975 g/ml
density = \frac{mass}{volume} 
so actual volume = \frac{mass}{density} = \frac{9.925}{0.9975} = 9.95 mL
Percentage Error = \frac{measured volume - Actual volume}{actual volume} x 100 
= \frac{10 - 9.95}{9.95} x 100 = 0.5 % error
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3 years ago
What are electromagnetic waves, and how can they be seen?
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radio waves, microwaves, infrared, light, ultraviolet, X-rays, and gamma rays. Your mind interprets the energies of light as different colors, from red to violet.

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Cole is working with radioactive particles and has set up a shield made of aluminum for protection. Which of the following will
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Answer:

C.) Alpha, beta, and gamma particles

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The strongest and most penetrating radiations are the gamma rays. Any material that can prevent the movement of these rays can halt alpha and beta particles too.

An aluminium shield is made up of multiple layers of aluminium stacked together and it provides enough resistance.

6 0
3 years ago
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The following equation is one way to prepare oxygen in a lab. 2KClO3 → 2KCl + 3O2 Molar mass Info: MM O2 = 32 g/mol MM KCl = 74
Alex73 [517]
From  the  equation  above   the  reacting   ratio  of  KClO3   to  O2  is  2:3 therefore  the  number  of  moles  of  oxygen  produced  is  ( 4 x3)/2 =  6 moles  since   four  moles  of  KClO3  was  consumed
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3 years ago
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What is the difference between heterozygous and homozygous
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If an organism is heterozygous, it has one copy of two different alleles. If an organism is homozygous, it has two copies of the same allele.

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2 years ago
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