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Nostrana [21]
3 years ago
11

ANSWER QUCIK PLS THANK YOU

Physics
1 answer:
Reil [10]3 years ago
8 0
Electrical energy in the charger and cable

Chemical energy in the battery of the mobile phone
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7) Sound waves travel with a nominal speed of 340 m/s. Calculate the wavelengths of the following musical notes:
Oksana_A [137]

The wavelength for C1 note is 10.40 m, for A6 note is 0.193 m and for B7 note 0.086 m.

Answer:

Explanation:

Since, wavelength, frequency and speed of sound waves are related to each other, we can determine a single parameter with the help of other two parameters. So in this case, the frequency of different notes are given along with their common speed. So as the frequency is inversely proportional to the wavelength then in this case, the wavelength of the notes will be maximum for C1 and minimum for 3951.1 Hz.

Wavelength = Speed / Frequency

Wavelength for C1 note = 340 / 32.7 =10.40 m

Similarly, the wavelength for A6 note  = 340/1760=0.193 m

And, the wavelength for B7 note = 340/3951.1 = 0.086 m

So, the wavelength for C1 note is 10.40 m, for A6 note is 0.193 m and for B7 note 0.086 m.

6 0
3 years ago
According to the Theory of Continental Drift, what did the Earth’s continents look like 255 million years ago? What is the name
dmitriy555 [2]
The name of this landmas is known as <em></em>Pangaea, was a supercontinent that existed during the late Paleozoic and early Mesozoic eras. It formed approximately 300 million years ago and began to break apart after about 100 million years. 

Theres an image of how this supercontinet looked

3 0
2 years ago
Read 2 more answers
If two point sources of light are being imaged by this telescope, what is the maximum wavelength λ at which the two can be resol
Alex

This question is incomplete.Here is complete one

Consider a telescope with a small circular aperture of diameter 2.0 centimeters. If two point sources of light are being imaged by this telescope, what is the maximum wavelength (lambda) at which the two can be resolved if their angular separation is 3.0x10^-5 radians? Express your answer in nanometers

Answer:

λ =492nm

Explanation:

Given Data

diameter=2.0 cm

angular separation=3.0x10^-5 radians

λ=?

Solution

sin(theta) = 1.22 x λ /D

λ=(0.02×sin(3.0×10⁻⁵))/1.22

λ=492nm

6 0
3 years ago
When moving a couch, you exert a force of 400N and push it 4.0m. How much work have you done on the couch?
Aleks04 [339]

Answer:

Explanation: work equals force times distance so 400x4=1600 joules

7 0
2 years ago
Use the drop-down menu to answer the question. In the equation I = v over r , what does I stand for? please help
ExtremeBDS [4]

Answer:

Current

Explanation:

The equation you mentioned is also known as Ohm's law, which can be applied for any circuit containing a battery and one (or more) resistors:

V=IR

where

V is the voltage

I is the current

R is the resistance

We can re-arrange the equation and rewrite it explicitely for I, the current, to match the equation mentioned in the text of the question, and we have:

I=\frac{V}{R}

6 0
2 years ago
Read 2 more answers
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