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Dmitriy789 [7]
3 years ago
13

How is an oscilloscope used to tune a musical instrument?

Chemistry
1 answer:
sp2606 [1]3 years ago
4 0
It uses the voltages and sound freq. in the air to measure the wave lengthths
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Which of the following is a correct lewis structure for sulfur dioxide, so2?
pshichka [43]

The correct Lewis structure of SO2 is the Lewis structure that shows all the 12 valence electrons in the molecule.

A Lewis structure shows the number of valence electrons on the valence shell of all the atoms in a compound. The electrons are shown as dots around the symbol of each element or a dash to indicate shared electrons in a covalent bond.

Looking at the Lewis structure of SO2 attached to this answer, we can see the twelve valence electrons in the molecule and how they are distributed around each atom as shown.

Learn more: brainly.com/question/20514601

3 0
1 year ago
A first-order decomposition reaction has a rate constant of 0.00440 yr−1. How long does it take for [reactant] to reach 12.5% of
mina [271]

Answer:

473 year

Explanation:

Using integrated rate law for first order kinetics as:

[A_t]=[A_0]e^{-kt}

Where,  

[A_t] is the concentration at time t

[A_0] is the initial concentration

Given:

To reach 12.5% of reactant means that 0.125 of [A_0] is decomposed. So,

\frac {[A_t]}{[A_0]} = 0.125

t = ?

\frac {[A_t]}{[A_0]}=e^{-k\times t}

0.125=e^{-0.00440\times t}

t = 473 year

8 0
3 years ago
Wich describes an object in projectile motion?
statuscvo [17]

Answer:

Hey, I'll help but I don't know what your options are.

Explanation:

3 0
3 years ago
Many chemical processes involve substances in either the liquid or gaseous state. Which of the following statements is correct?
Mrac [35]
A specific mass of a gas has a fixed volume at room temperature
7 0
3 years ago
Which two elements weather rocks by smoothing them?
Svet_ta [14]
It’s gonna be water and wind after many years of harsh winds and water the rock will slowly start to break or even become smooth ! That’s why you might find those at the lake ! so c!
3 0
2 years ago
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