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2 years ago

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a string with fixed ends is made to go into standing wave patterns. at a given tension, the lowest frequency for which a certain

pattern exists is 150 Hz. which of the following frequencies would also cause a standing wave pattern in this case?

1 answer:

lakkis [162]2 years ago

3 0

Answer:

700 hz

Explanation:

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64 g of sulfur dioxide (SO2) contains 32 g of oxygen. Calculate how much sulfur it contains.

Ghella [55]

In sulfur dioxide, there are 2 oxygen atoms and 1 sulfur atom. As there are 32g of sulfur and 32g of oxygen, that would mean that each oxygen atom would weigh about 16g. Given that, the mass of a single sulfur atom is twice that of a single oxygen atom.

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3 years ago

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A cloud mass moving across the ocean at an altitude of 2000 m encounters a coastal mountain range. As it rises to a height of 35

GREYUIT [131]

Answer:

snow

Explanation:

Since the process undergoes adiabatic expansion, hence q = 0 and ΔU = w.

We can sole this problem using the following derivation:

$ln(\frac{T_2}{T_1} )=-(\gamma -1)ln(\frac{V_f}{V_i} )=-(\gamma -1)ln(\frac{T_2}{T_1}\frac{P_i}{P_f} )\\=-(\gamma -1)ln(\frac{T_2}{T_1})-(\gamma -1)ln(\frac{P_i}{P_f})\\=-(\frac{\gamma -1}{\gamma})ln(\frac{P_i}{P_f})\\=-(\frac{\frac{C_{p,m}}{C_{p,m}-R} -1}{\frac{C_{p,m}}{C_{p,m}-R}})ln(\frac{P_i}{P_f})\\\\ln(\frac{T_2}{T_1} )==-(\frac{\frac{C_{p,m}}{C_{p,m}-R} -1}{\frac{C_{p,m}}{C_{p,m}-R}})ln(\frac{P_i}{P_f})\\\\Substituting\ values:\\\\$

$ln(\frac{T_2}{T_1} )=-(\frac{\frac{28.86}{28.86-8.314} -1}{\frac{28.86}{28.86-8.314}})ln(\frac{0.802\ atm}{0.602\ atm})=-0.0826\\\\ln(\frac{T_2}{T_1} )=-0.0826\\\\Taking\ exponential\ of\ both \ sides:\\\\\frac{T_2}{T_1} =e^{-0.0826}\\\\T_2=0.9207T_1\\\\T_2=0.9207*288\\\\T_2=265\ K\\$

Since T2 = 265 K, we should expect a snow

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3 years ago

The quarks that compose a baryon may have charges of.

Bingel [31]

The quarks that compose a baryon may have negative and positive charges of +(2/3)e, -(1/3)e.

<h3>What is a quark?</h3>

A quark is a type of particle that forms protons and neutrons and combines to generate particles called hadrons.

Protons and neutrons may be formed by up quarks and down quarks that have a charge equal to -1/3e.

In conclusion, the quarks that compose a baryon may have negative and positive charges of +(2/3)e, -(1/3)e.

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2 years ago

A skier’s most important piece of equipment

leva [86]

Answer: A skier’s most important piece of equipment is Ski boots.

Explanation: To find the answer, we need to know about the ski boots.

<h3>Why ski boots are the most important equipment for a skier?</h3>

Skiing can be defined as the action of travelling over snow on skis.
There are different equipment's we use during skiing, among them, the most important equipment's is ski boot.

Ski boots are not meant for walking, but they provide the skis an extension for their legs.
The other equipment's are ski goggles, ski helmets, ski jackets and so on.

Thus, we can conclude that, a skier's most important equipment is Ski boots.

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1 year ago

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[ Simple machine ]

AleksAgata [21]

Answer:

Answer:

2.5 m

Explanation:

Load ( L ) = 500 N

Effort ( E ) = 200 N

Load distance ( LD ) = 3 m

Effort distance ( ED ) = ?

Now, Let's find the Effort distance ( ED )

We know that,

Output work = Input work

i.e L × LD = E × ED

plug the values

multiply the numbers

Swipe the sides of the equation

Divide both sides of the equation by 200

Calculate

Hope this helps..

best regards!!

6 0

3 years ago