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mart [117]
3 years ago
14

A signal travels from point A to point B. At point A, the signal power is 100 W. At point B, the power is 90 W. What is the atte

nuation in decibels?
Computers and Technology
1 answer:
11Alexandr11 [23.1K]3 years ago
7 0

Answer:

Attenuation = 0.458\ db

Explanation:

Given

Power at point A = 100W

Power at point B = 90W

Required

Determine the attenuation in decibels

Attenuation is calculated using the following formula

Attenuation = 10Log_{10}\frac{P_s}{P_d}

Where P_s = Power\ Input and P_d  = Power\ output

P_s = 100W

P_d = 90W

Substitute these values in the given formula

Attenuation = 10Log_{10}\frac{P_s}{P_d}

Attenuation = 10Log_{10}\frac{100}{90}

Attenuation = 10 * 0.04575749056

Attenuation = 0.4575749056

Attenuation = 0.458\ db <em>(Approximated)</em>

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Def sum_divisors(n): sum =1 # Return the sum of all divisors of n, not including n x=int(n**0.5) for i in range(2,(x//1)+1): if
Novosadov [1.4K]

Answer:

This is a python program that counts the number of divisors of a given number and calculates the sum of the divisors.

Explanation:

The first line defines a function "sum_divisors" with an argument "n". The square root of the argument is converted to integer and assigned to the variable "x", then a for loop is used to iterate through the range 2 to the calculated nth number of divisors in the argument.The return keyword returns the sum value.

The function is called with several arguments and printed with the print function.

6 0
2 years ago
Obtain the 10’s complement of the following six-digit decimal numbers:<br><br> 123900<br><br> 980657
zysi [14]

Answer:

876100

019343

Explanation:

10s complement of a decimal number is obtained by the following process:

- Obtain 9s complement ( Subtract each digit by 9)

- Add 1 to the result

1) 123900

9s complement => (9-1)(9-2)(9-3)(9-9)(9-0)(9-0)

= 876099

Adding 1 , 10s complement of 123900 = 876100

2) 980657

9s complement = (9-9)(9-8)(9-0)(9-6)(9-5)(9-7)

= 019342

Adding 1 , 10s complement of 980657 = 019343

7 0
3 years ago
TIME REMAINING 01:48:57 What is the purpose of the website directory provided by the website host? to look up user account infor
muminat

Answer:

Cookie

Explanation:

its just because and also the answer is right on e 2020.

8 0
2 years ago
Read 2 more answers
9) If you are working on the part of 5-15 minutes, time-stamping (every 30 seconds) should start at: a) [00:05:00] b) [00:00:00]
loris [4]

Answer:

a) [00:05:00]

Explanation:

Timestamps are markers in a transcript which are used to represent when an event took place. Timestamps are in the format [HH:MM:SS] where HH is used to represent hour, MM to represent the minute and SS to represent the seconds. They are different types of timestamping such as:

i) Periodic time stamps: Occurs at a consistent frequency

ii) Paragraph time stamping: At the beginning of paragraphs

iii) Sentence time stamp: at the beginning of sentence

iv) Speaker time stamp: at change of speaker.

Since a part of 5-15 minutes with time-stamping (every 30 seconds), The time stamping should start at 5 minute [00:05:00] and end at [00:15:00]. This is a periodic time stamp since it occurs every 30 seconds, this means the next time stamp would be [00:05:30] and this continues until 15 minute [00:15:00]

3 0
3 years ago
Which sql keyword is used to retrieve a minimum value from an attribute in a table
konstantin123 [22]

The SQL keyword that is often used to retrieve a minimum value from an attribute in a table is the MIN function.

<h3>What is the MIN Function? </h3>

The MIN Function is known to be a group found under Excel Statistical functions.

Note that the MIN often return the minimum value in any list of arguments and as such The SQL keyword that is often used to retrieve a minimum value from an attribute in a table is the MIN function.

Learn more about SQL from

brainly.com/question/25694408

#SPJ11

5 0
1 year ago
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