3 years ago

With nonreturn to zero signaling, the voltage alternates between zero and a positive or negative voltage. True False

Physics

1 answer:

SSSSS [86.1K]3 years ago

7 0

Answer:

False.

Explanation:

No. Voltage does not alternate between zero and positive or negative. In non return signaling (NRZ) voltage at zero represents the 0 bit and at the positive represent the 1 bit. NRZ is one of the signal levels of uni polar Scheme in which the signal does not return to zero at the middle of it. For example 10110. That is why it named as the non return signaling.

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If the diameter of the black marble is 3.0cm, and bye using the formula for volume, what is a good approximation if it’s volume?

tia_tia [17]

Complete question is;

If the diameter of the black marble is 3.0 cm, and by using the formula for volume, what is a good approximation of its volume?

Answer:

14 cm³

Explanation:

We will assume that this black marble has the shape of a sphere from online sources.

Now, volume of a sphere is given by;

V = (4/3)πr³

We are given diameter = 3 cm