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Aleks04 [339]
2 years ago
6

What is the frequency of a wave with speed 3m/s and wavelength 6m?

Physics
1 answer:
Ugo [173]2 years ago
6 0

Answer:

f = 0.5 Hz

Explanation:

frequency = f

wave length = l

speed of wave = v

f = v/l → f = 3/6 = ½ = 0.5 Hz

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Consider three identical electric bulbs of power P. Two of bulbs are connected in series and the third one is connected in paral
Tamiku [17]

Answer: 3P/2

Explanation: Let the resistance of the bulbs be R.

now lets consider a Voltage V is supplied to the parallel circuit  such that

P=VI=V^2/R

V=IR

both single bulb( bulb 3) and the two bulbs ( bulb 1 and bulb 2) are provided the same Voltage

( as the voltage remains same in parallel circuit)

we can calculate the Current across both circuits

At Bulb 3

Current 1=V/R

Power1=Voltage * Current1

Power1=V*V/R

Power1=P

At Bulb 1 and Bulb 2

Total Resistance= R+R=2R

Current2=\frac{V}{2R}

Power2=Voltage * Current2

Power2=V*\frac{V}{2R} \\Power2=\frac{V^2}{2R} \\Power2=P/2

TotalPower=Power1+Power2\\TotalPower=P+P/2\\TotalPower=\frac{3P}{2}

6 0
3 years ago
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alex41 [277]
They were formed in the nuclear<span> fusion reaction inside older </span><span>stars.
 
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8 0
3 years ago
A wind-tunnel experimentis performed on a 1/25scale model of a supersonic aircraft. The prototype aircraft flies at 450 m/s in c
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Answer: V = 504m/a

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Explanation: please find the attached file for the solution

4 0
3 years ago
When several radio telescopes are wired together, the resulting network is called a radio
WINSTONCH [101]

Answer:

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Explanation:

4 0
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