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2 years ago

6

The while loop and the do loop are equivalent in their expressive power; in other words, you can rewrite a while loop using a do

loop, and vice versa.
a. True
b. False

Computers and Technology

1 answer:

sleet_krkn [62]2 years ago

8 0

I think False...

I hope this helps

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Write a program that takes in a positive integer as input, and outputs a string of 1's and 0's representing the integer in binar

mylen [45]

Answer:

The program to this question can be described as follows:

Program:

num= int(input('Enter a number: ')) #input value by user

st = '' #defining string variable

while num > 0: #define loop to calculte values binary number

val= num % 2 # holding remainder (0 or 1) in val variable

st =st+str(val) # store value in str variable

num = num//2 #calculte quotient value

print("binary number is: ",st)

Output:

Enter a number: 5

binary number is: 101

Explanation:

Program description as follows:

Firstly the "num" variable is declared, for user input, then an "st" variable is declared, to calculates user input value binary number.

In the next step, a while loop is declared, inside the loop, another variable "Val" is declared, that holds value remainders, which is added on the "st" variable.

Outside the loop, the print method is used, that prints st variable holds value.

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3 years ago

Bob flys a drone which has a 20 megapixel camera attached, what is the definition of "megapixel in this context? Why does it mat

Verizon [17]

Answer:

megapixel refers to the unit of resolution i.e. one million

Explanation:

Interestingly the higher the pixels does not mean higher quality of image, it's more about the camera and it's sensor.

I am a photographer and a licensed drone pilot and have researched the subject to help with camera choice, both DSLR and drone.

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3 years ago

four quantum numbers that could represent the last electron added (using the Aufbau principle) to the Argon atom. A n = 2, l =0,

marshall27 [118]

Answer:

n = 3

$l$ = 1

$m_l$ = 1

$m_s=+1/2$

Explanation:

Argon atom has atomic number 18. Then, it has 18 protons and 18 electrons.

To determine the quantum numbers you must do the electron configuration.

Aufbau's principle is a mnemonic rule to remember the rank of the orbitals in increasing order of energy.

The rank of energy is:

1s < 2s < 2p < 3s < 3p < 4s < 3d < 4p < 5s < 4d < 5p < 6s < 4f < 5d < 6p < 7s < 5f < 6d < 7d

You must fill the orbitals in order until you have 18 electrons:

1s² 2s² 2p⁶ 3s² 3p⁶ : 2 + 2 + 6 + 2 + 6 = 18 electrons.

The last electron is in the 3p orbital.

The quantum numbers associated with the 3p orbitals are:

n = 3

$l$ = 1 (orbitals s correspond to $l$ = 0, orbitals p correspond to $l$ = 1, orbitals d, correspond to $l$ = 2 , and orbitals f correspond to $l$ = 3)

$m_l$ can be -1, 0, or 1 (from - $l$ to + $l$ )

the fourth quantum number, the spin can be +1/2 or -1/2

Thus, the six possibilities for the last six electrons are:

(3, 1, -1 +1/2)
(3, 1, -1, -1/2)
(3, 1, 0, +1/2)
(3, 1, 0, -1/2)
(3, 1, 1, +1/2)
(3, 1, 1, -1/2)

Hence, the correct choice is:

n = 3

$l$ = 1

$m_l$ = 1

$m_s=+1/2$

5 0

3 years ago

Write a program that takes in a positive integer as input, and outputs a string of 1's and 0's representing the integer in binar

MAXImum [283]

Answer:

thats what i was about to ask. im not sure

Explanation:

sorry '-'

3 0

3 years ago

How does soil lose its value? A.When the top soil is stripped by wind or water B.When the bedrock is damaged by animals C.When w

Ratling [72]

A) when the soil is stripped by wind or water.. when this happens the soil can be rid of it's nutrients and fertility.. The other options are actually kind of helpful, when the bedrock is damaged by animals (unless you've already set up and everything) it actually helps to till the soil, the water will help to moisten it and make it better or providing life (depending upon the amount of water tht is) and burrowing animals can consist of worms to groundhogs.. depending upon the plans for said soil, It could be helpful with the worms, but the plans could be altered by the groundhog.. but referring to the original question, It definitely loses it's value when it's stripped by wind and water.

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3 years ago