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mart [117]
2 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]2 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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The program DebugTwo2.cs has syntax and/or logical errors. Determine the problem(s) and fix the program.// This program greets t
Elenna [48]

Answer:

The corrected code is as follows:

using System;

using static System.Console;

class DebugTwo2{

     static void Main(string[] args){

       string name;string firstString, secondString;

       int first, second, product;

       Write("Enter your name >> ");

       name = ReadLine();

       Write("Hello, {0}! Enter an integer >> ", name);

       firstString = ReadLine();

       first = Convert.ToInt32(firstString);

       Write("Enter another integer >> ");

       secondString = ReadLine();

       second = Convert.ToInt32(secondString);

       product = first * second;

       Write("Thank you, {0}. The product of {1} and {2} is {3}", name,first, second, product);

   }

}

Explanation:

       string name;string firstString, secondString; ----- Replace secondSting with secondString,

<em>        int first, second, product;</em>

       Write("Enter your name >> "); --- Here, the quotes must be closed with corresponding quotes "

       name = ReadLine(); The syntax of readLine is incorrect without the () brackets

<em>        Write("Hello, {0}! Enter an integer >> ", name);</em>

<em>        firstString = ReadLine();</em>

       first = Convert.ToInt32(firstString); There is a dot between Convert and ToInt32

<em>        Write("Enter another integer >> ");</em>

       secondString = ReadLine(); --- Readline() should be written as ReadLine()

<em>        second = Convert.ToInt32(secondString);</em>

<em>        product = first * second;</em>

       Write("Thank you, {0}. The product of {1} and {2} is {3}", name,first, second, product); --- The formats in {} should start from 0 because 0 has already been initialized for variable name

   }

}

5 0
2 years ago
Modern operating systems decouple a process address space from the machine’s physical memory. List two advantages of this design
kolbaska11 [484]

Answer: Decoupling action of the process address space refers to the physical memory of the device getting decoupled to provide  address translation in automatic way. The benefit of this method is as follows:-

  • Faster starting up of the program
  • The physical address space gets managed on its own
  • Helps in execution of large program when the main memory of the machine is of  smaller size in comparison with program

7 0
2 years ago
Olivia creates a personal budget. She enters her current savings account balance in cell D3. In cell A3, she calculates her inco
alexdok [17]

Answer is :

=D3+A3-B3

These Cell address contain following statement:

D3= Olivia saving account balance

A3= Olivia 3 month income

B3= Olivia 3 month expense

so, Expense are also deducted from income and income is added into saving balance.

In this situation we are use this formula:

=D3+A3-B3

5 0
2 years ago
Each of these is a basic type of a touch screen, except ________.
Oksanka [162]
<span>A touch screen gives response and acts simply with a touch on the screen area. Reflective screen is not a basic type of touch screen. The reflection can be reduced for the touch screen when it is combined with the LCD and the screen still be very visible. These screens can be anti glare and safe to the eyes.</span>
8 0
2 years ago
Read 2 more answers
An expression containing the operator &amp;&amp; is true either or both of its operands are true. True/False
Luba_88 [7]

Answer:

True.

Explanation:

An expression containing the && and  operator is only true if both of the operands present in the expression are true otherwise it will give the result as false if either one of them is false or both of them are false.In the question it states that the expression in true either or both of it's operand are true.

Hence the answer is true.

4 0
2 years ago
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