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NikAS [45]
2 years ago
15

A wave cycle is

Chemistry
1 answer:
fenix001 [56]2 years ago
6 0
It’s c because a wave cycle is repeating patterns all over again and again
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A penny has a total mass of 3.1 grams. Zinc makes up 2.9 g of the penny. What is the percentage of zinc in the penny?​
Savatey [412]
Find the proportion, and multiply it by 100 to get the percentage.
The proportion is 2.9/3.1=0.935
The percentage is 0.935*100=93.5
8 0
3 years ago
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The specific heat of zinc is 0.39 j/g*��
eduard

<span>I just did this and the correct answer was 464.1 J, absorbed</span>

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Question attached below
Lunna [17]

Answer:

D water conductivity.

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3 years ago
In the equation F= M x A, what are the three variables? (choose 3) A Friction B Mass C Momentum D Force E Acceleration
joja [24]

<u>Answer:</u>

<em>B Mass </em>

<em>D Force </em>

<em>E Acceleration</em>

<u>Explanation:</u>

We know that

Force = mass × acceleration  

F = m × a

The unit of force is newtons

The unit of mass is kg  and

the unit of acceleration is ms^{-2}  

Force and acceleration are vector quantities and mass is a scalar quantity.

Newton's 2nd law of motion states that acceleration is directly proportional to net force and inversely proportional to mass.

he result is the equation

∑F = ma

5 0
3 years ago
Ethylene glycol (antifreeze) has a density of 1.11 g/cm3. What is the mass in grams of 387 mL of ethylene glycol?
olga2289 [7]
Cm^3 = mL

1.11 g/cm^3 = 1.11 g/mL

Density (g/mL) multiplied by volume (mL) will give us the mass (g)

1.11 g/mL * 387 mL = 429.57 g

And since we have 3 significant figures, we have 430. g.
6 0
3 years ago
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