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yarga [219]
3 years ago
7

To see how two traveling waves of the same frequency create a standing wave. Consider a traveling wave described by the formula

Physics
1 answer:
pentagon [3]3 years ago
5 0

Answer:

Check the explanation

Explanation:

so basically the standing wave will be created by two waves... y1 and the wave reflected, ie, y2=Asin(wt+Kx)..

so the resulting wave will be Y= y1 + y2 = 2A Sin(Kx) Cos(wt) = y(x) y(t)

so y(x)= 2ASin(Kx) and y(t)=Cos(wt)...

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A weather balloon is designed to expand to a maximum radius of 24 m at its working altitude, where the air pressure is 0.030 atm
nlexa [21]

Answer:

<em>Radius at liftoff 8.98 m</em>

Explanation:

At the working altitude;

maximum radius = 24 m

air pressure = 0.030 atm

air temperature = 200 K

At liftoff;

temperature = 349 K

pressure = 1 atm

radius = ?

<em>First, we assume balloon is spherical in nature,</em>

<em>and that the working gas obeys the gas laws.</em>

from the radius, we can find the volume of the balloon at working atmosphere.

Volume of a sphere = \frac{4}{3} \pi r^{3}

volume of balloon = \frac{4}{3} x 3.142 x 24^{3} = 57913.34 m^3

using the gas equation,

\frac{P1V1}{T1} = \frac{P2V2}{T2}

<em>The subscript 1 indicates the properties of the gas at working altitude, and the subscript 2 indicates properties of the gas at liftoff.</em>

imputing values, we have

\frac{0.03*57913.34}{200} = \frac{1*V2}{349}

0.03 x 57913.34 x 349 = 200V2

V2 = 606352.67/200 = <em>3031.76 m^3  this is the volume occupied by the gas in the balloon at liftoff.</em>

from the formula volume of a sphere,

V =  \frac{4}{3} \pi r^{3} =  \frac{4}{3} x 3.142 x r^{3} = 3031.76

4.19r^{3}  = 3031.76

r^{3} = 3031.76/4.19  

radius r of the balloon on liftoff = \sqrt[3]{723.57} = <em>8.98 m</em>

4 0
3 years ago
There is no( ) in time between the action and the reaction
Lesechka [4]
There is no (gap) in time between the action and the reaction

hope that helps:)
4 0
4 years ago
Which of the following terms describes the streak of light created when a space object enters Earth's atmosphere?
Burka [1]
Impact crater would be the answer but tell me if I'm roght
5 0
4 years ago
Read 2 more answers
Practice report of resistance measurement with Wheatstone bridge
belka [17]

Answer: Hii

Explanation: I had a picture.. so i think this might help you.. I answered this question using this picture, so i thought same might go to u too.. Hv a look.. Good Luck..!!

Download pdf
6 0
3 years ago
Using the experimentally determined resonant frequency and measured value of the capacitor, find the value of the inductor. 4. d
mafiozo [28]

2.496 HZ is the resistance change the resonant frequency.

Given, Supply frequency, f = 60 12

number of poles, P = 4

Full load speed, Ne= 1725 rpm

Synchronous speed; No= 1201= 120X60 = 1800 rpm

P

4

We know the formula for Full load-speed

Ne = N's (1 - Sf)

where se = full load rotor ship

Ne = 1 - SP

SQ = 1- Ne = 1- 1725 = 0.0416 DY 4-16%

1800

SQ= 4. 16 % or 0.0416

Frequency of rotor, fy= Sgif = (0.0416) ( 60 ) = 2.496 Hz

fr = 2.496 HZ

Learn more about Frequency here: brainly.com/question/16148316

#SPJ4

8 0
2 years ago
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