the frequency (in hz) of these vibrations if the car moves at 24.2 m/s is 605 HZ .
Calculation :
frequency = ![\frac{number of contacts}{second}](https://tex.z-dn.net/?f=%5Cfrac%7Bnumber%20of%20contacts%7D%7Bsecond%7D)
frequency = ![\frac{24.2 m/s}{1}*100cm*\frac{1}{4cm}](https://tex.z-dn.net/?f=%5Cfrac%7B24.2%20m%2Fs%7D%7B1%7D%2A100cm%2A%5Cfrac%7B1%7D%7B4cm%7D)
= 605 HZ
Frequency describes the number of waves passing through a particular location in a particular time. So if the wave takes 1/2 second to travel, the frequency is 2 per second. If it takes 1/100th of an hour, the frequency is 100 per hour.
Frequency is the number of occurrences of a repeating event per unit time. ... sometimes called time-frequency for clarity,
Learn more about frequency here : brainly.com/question/254161
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An example of the use of expansion of materials when they are heated is in
Thermometers. Thermometer is an instrument which is used to measure the
temperature of a place.
It contains mercury which expands as temperature increases. This is used
to accurately determine the temperature of an object.
The disadvantage of expansion of materials when they are heated can be
seen in roads as there is expansion of the surface as a result of heat
exposure leads to roads being rough thereby incurring more costs for
repairs.
Read more about Heat expansion on brainly.com/question/1166774
Answer:
c = 5 m
Explanation:
this exercise you want to divide the rectangular room into two triangular rooms
the area of triangles is
A = ½ base height
A = ½ 4 3
A = 6 m²
the length of the curtain can be found using the Pythagorean theorem
c² = b² + a²
c = √ (4² + 3²)
c = 5 m
this is the length of the curtain
La masa molar de 65 litros de SO2 es igual a 64,1 g/mol.
<h3>Masa molar</h3>
La masa molar de un compuesto depende de su masa presente en 1 mol, entonces:
![MM=\frac{m}{mol}](https://tex.z-dn.net/?f=MM%3D%5Cfrac%7Bm%7D%7Bmol%7D)
Para calcular la masa molar de un compuesto, simplemente suma las masas de cada elemento en el compuesto, así:
![MM_O = 16g/mol\\MM_S= 32.1g/mol](https://tex.z-dn.net/?f=MM_O%20%3D%2016g%2Fmol%5C%5CMM_S%3D%2032.1g%2Fmol)
![32.1 + 2\times 16 = 64.1g/mol](https://tex.z-dn.net/?f=32.1%20%2B%202%5Ctimes%2016%20%3D%2064.1g%2Fmol)
Así, la masa molar de 65 litros de SO2 es igual a 64,1 g/mol.
Obtenga más información sobre la masa molar en: brainly.com/question/17109809