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Lyrx [107]
3 years ago
5

how many bits must be flipped (i.e. changed from 0 to 1 or from 1 to 0) in order to capitalize a lowercase 'a' that’s represente

d in ascii?
Computers and Technology
1 answer:
lianna [129]3 years ago
4 0
Lowercase a is decimal 97 ; upper case is decimal 65

It's easier to think of them in octal, however: a = octal 141, and A is octal 101

octal to binary is easy, each digit is three bits. 
141 = 001 100 001 
101 = 001 000 001

So, how many bits are changed above? 
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3 years ago
What is one key difference between the radiation and convection zones?
Anuta_ua [19.1K]
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Unfortunately, analogies are hard but if you can visualize the particles involved, it would help. Picture the red hot iron you mentioned. On a molecular level, the material is emitting lots and lots of photons (hence why it is glowing red). The creation of these photons takes energy; energy from the heat of the iron. These photons leave the iron, pass through the environment, and eventually collide with some other object where they are absorbed and deposit their energy. This is radiative heat transfer. If that energy is deposited on your retina or a CCD (like in a digital camera), an image forms over time. This is how infrared goggles work and they would work equally well in high vacuum as here on earth.

In conduction, the next simplest example, there is no generation of photons (physics nerds forgive me for the sake of simplicity). The individual atoms in the object are vibrating with heat energy. As each atom gains energy from it's more energetic neighbors, so it gives up energy to its less energetic ones. Over time, the heat "travels" through the object.

In convection, the molecules of gas near the object gain energy, like in the conduction case, but those same molecules that gained energy then travel through the environment to some other location where they then give off their heat energy.

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radiation = generated and absorbed photonsconduction = molecules exciting their neighbors succesivelyconvection = molecules heated like in conduction, but then move to another location
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Answer:

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