1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
aksik [14]
2 years ago
5

What is the frequency of the sinusoidal graph?

Chemistry
1 answer:
Arisa [49]2 years ago
8 0

Answer:

For finding frequency, we need to first find the period of the graph.

The period of a sinusoidal graph is the time interval in which it repeats its pattern.

In the graph, we can see, after 1/period time, it repeats its pattern.

Hence the period of the graph is  \pi /2.

Now we need to find its frequency 1/\pi /2

The formula for frequency is 2/\pi

This is the answer

i hope you pass the assignment

try your best!

You might be interested in
Calculate the number of moles in 23.8 grams of Nitrogen, N.
Vlad1618 [11]

Answer:

n = 1.7 moles

Explanation:

Given mass, m = 23.8 grams

Molar mass of Nitrogen = 14 g/mol

Let there is n number of moles. We know that,

No. of moles = given mass/ molar mass

n=\dfrac{23.8}{14}\\\\n=1.7

So, there are 1.7 moles in 23.8 grams of Nitrogen.

8 0
2 years ago
a) What is the common-ion effect?b) Given an example of a salt that can decrease the ionization of HNO2 in solution. List all of
slega [8]

Answer:

Common ion effect refers to the decrease in the solubility of a substance in a solution with which it shares a common ion.

NaNO2

Explanation:

In order to understand exactly what common ion effect is, let us consider a simple unambiguous example. Assuming I have a solution of an ionic substance that contains a cation A and an anion B, this ionic substance has chemical formula AB. Secondly, I have another ionic distance with cation C and anion B, its chemical formula is CB. Both CB and AB are soluble in water to a certain degree as shown by their respective KSp.

If I dissolve AB in water and form a solution, subsequently, I add solid CB to this solution, the solubility of CB in this solution is found to be lees than the solubility of CB in pure water because of the ion B^- which is common to both substances in solution. We refer to the phenomenon described above as common ion effect.

Common ion effect refers to the decrease in the solubility of a substance in a solution with which it shares a common ion.

If I try to dissolve NaNO2 in a solution of HNO2, the solubility of NaNO2 in the HNO2 solution will be less than its solubility in pure water due to common ion effect. Also, the extent of ionization of HNO2 in a system that already contains NaNO2 will be decreased compared to its extent ionization in pure water. This system described here will contain HNO2, water and NaNO2

3 0
3 years ago
PLEASE HELP!! What is the concentration [H3O+] of a solution with a pH of 13.2? Is the solution acidic, basic, or neutral?
Ilya [14]

The  concentration of [H3O+] will be 6.3 x 10^{-14} M

<h3>pH</h3>

Mathematically, pH = -log [H+] or -log [H3O+]

With a pH of 13.2:

      -log [H3O+] = 13.2

                     log [H3O+] = -13.2

                         [H3O+] = 6.3 x 10^{-14} M

More on pH can be found here: brainly.com/question/491373

#SPJ1

3 0
1 year ago
Read 2 more answers
A. If both Assertion &amp; Reason are true and the reason is the correct explanation of the assertion. B. If both Assertion &amp
Neporo4naja [7]

Answer:

C. If Assertion is true statement but Reason is false.

Explanation:

The burning of magnesium in air produces magnesium oxide as shown by the equation;

2Mg(s) + O2(g) -----> 2MgO(s)

The magnesium oxide solid is recovered as a white ash. This is a typical example of an oxidation reaction which is also a combustion reaction.

The reason has nothing at all to do with the assertion hence the answer given.

Magnesium oxide is basic just like the oxides of other metals and dissolves in water to yield an alkali.

8 0
3 years ago
Read 2 more answers
The chemical formula for table sugar is C12H11O22. What can you tell from this formula?
just olya [345]
I say the answer is The ratio of oxygen atoms to hydrogen atoms in a molecule of sugar is 2 to 1 
7 0
3 years ago
Read 2 more answers
Other questions:
  • A sample of ammonia gas has a volume of 3213 mL at 11°C and a pressure of 822 torr. What will the volume of the gas be in liters
    15·1 answer
  • If a 20.0mL test tube measures 15.0cm, what is the length in meters?
    9·2 answers
  • 1. How is the density of a substance calculated? 2. If the shape of an object is irregular, like a stone, how can you measure it
    11·1 answer
  • Please help. me with my chemistry
    5·1 answer
  • Help science!! *10 points*
    8·1 answer
  • Radiation is energy that is
    10·1 answer
  • Given the following equation: 3Cl2 (g) + 8NH3 (g) → N2 (g) +
    13·1 answer
  • Select the correct electron configurations from the list below. You can refer to the periodic table for atomic numbers. Check al
    14·1 answer
  • What volume of 0.20 M NaCl contains 10.0 g
    6·1 answer
  • 3Ba+Al2(SO4)3 --&gt;2Al+3BaSO4,
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!