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3 years ago

What does the frequency of a wave represent

1 answer:

4 0

The number of complete waves, or complete cycles, per unit of time is called the frequency. Because every complete wave has one crest and one trough, you can think of the frequency as the number of crests or troughs produced per unit time. The unit used to measure wave frequency is called the hertz (Hz)

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How much of the original amount of an isotope is present after a period of four half lives

vfiekz [6]

After 2 half-lives there will be 25% (1/4th) of the original isotope, and 75% (3/4 th) of the decay product

<h3>What is Half life period ?</h3>

A half life is a measurement of the slope of an exponential decay function.

It is also defined as, the time it takes to halve the concentration of something in a process.

Each half life you will have half of what you had at the beginning of a given half life.

Learn more about half life here ;

brainly.com/question/9654500

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7 0

1 year ago

PLEASE HELP IM TAKING A TEST!!! Consider the reaction 4FeS2 + 11O2 → 2Fe2O3 + 8SO2. If 8 moles of FeS2 react with 15 moles of O2

chubhunter [2.5K]

Answer:

c-)O2

Explanation:

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2 years ago

In the process of photosynthesis, plants take in carbon dioxide (CO2) from the atmosphere and water (H2O) from the soil. Using t

andrew11 [14]

Answer:

Explanation:

thts the right answwer im sure

7 0

3 years ago

Read 2 more answers

I need help with number two

Komok [63]

The temperature is held constant at (b) and (d). At these points, the substance is changing states. B is changing from solid to liquid and D is changing from liquid to gas

3 0

2 years ago

At a certain temperature 3.24 moles of co2 gas at 2.15atm takes up a volume of 35.28 what is the temperature in celsius

andrew-mc [135]

Answer:

The temperature is 12.35 C.

Explanation:

An ideal gas is a theoretical gas that is considered to be composed of point particles that move randomly and do not interact with each other. Gases in general are ideal when they are at high temperatures and low pressures.

An ideal gas is characterized by three state variables: absolute pressure (P), volume (V), and absolute temperature (T). The relationship between them constitutes the ideal gas law, an equation that relates the three variables if the amount of substance, number of moles n, remains constant and where R is the molar constant of the gases:

P * V = n * R * T

In this case:

P= 2.15 atm
V= 35.28 L
n= 3.24 moles
R= 0.082 $\frac{atm*L}{mol*K}$
T= ?

Replacing:

2.15 atm* 35.28 L= 3.24 moles* 0.082 $\frac{atm*L}{mol*K}$ * T

Solving:

$T=\frac{2.15 atm* 35.28 L}{3.24 moles* 0.082\frac{atm*L}{mol*K}}$

T=285.5 K= 12.35 C (being 273.15 K= 0 C)

<u><em>The temperature is 12.35 C.</em></u>

3 0

3 years ago