An am transmitter is modulated with an audio testing signal given by m(t) = 0.2 sin v1t + 0.5 cos v2t, where f1 = 500 hz, f2 = 500 12 hz, and ac = 100. assume that the am signal is fed into a 50-ω load. (a) sketch the am waveform. (b) what is the modulation percentage? (c) evaluate and sketch the spectrum of the am waveform.

the equation above shows how temperature f, measured in degrees fahrenheit, relates to a temperature c, measured in degrees celsius. based on the equation, which of the following must be true?

a temperature increase of 1 degree fahrenheit is equivalent to a temperature increase of

5

9

degree celsius.

a temperature increase of 1 degree celsius is equivalent to a temperature increase of 1.8 degrees fahrenheit.

a temperature increase of

5

9

degree fahrenheit is equivalent to a temperature increase of 1 degree celsius.

a) i only

b) ii only

c) iii only

d) i and ii only

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Explanation:

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