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4 years ago

List at least three things people are doing to design transportation systems that are better for the environment.

1 answer:

6 0

People are more commonly using vehicles that are fully electric meaning no emissions. People are using more renewable resources for energy such as solar panels, wind turbines, etc. Along with this are people designing more efficient transportation systems such as The Hyperloop, Space X's multi-use rockets, etc.

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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 represe

castortr0y [4]

Only one.
00100001 is 'A'
01100001 is 'a'

4 0

3 years ago

The speed of sound depends on the material the sound is passing through. Below is the approximate speed of sound (in feet per se

german

Answer:

The Java Program for the given problem is as below. Directly copy the code and run it on your machine.

Explanation:

Refer the Screenshots attached for the output.

import java.io.BufferedReader;

import java.io.InputStreamReader;

public class TheSpeedOfSound {

public static void main(String[] s)

{

String medium;

double distance;

double time;

try{

BufferedReader choice = new BufferedReader(new InputStreamReader(System.in));

System.out.println("Enter one of the following: air, water, or steel: ");

medium = choice.readLine(); // reading input i.e. air, water or steel

//check for air water and steel

if (medium.equalsIgnoreCase("air") || medium.equalsIgnoreCase("water") || medium.equalsIgnoreCase("steel")){

System.out.println("Enter the distance the sound wave will travel: ");

distance = Double.parseDouble(choice.readLine()); // read distance value if it is air water or steel

switch (medium)

{

//if medium is air

case "air":

time = distance/1100;

System.out.print("It will take " + time + " seconds.");

break;

//if medium is water

case "water":

time = distance/4900;

System.out.print("It will take " + time + " seconds.");

break;

//if medium is steel

case "steel":

time = distance/16400;

System.out.print("It will take " + time + " seconds.");

break;

}

else{

System.out.print("Sorry, you must enter air, water, or steel.");

}

catch(Exception e){

e.printStackTrace();

}

8 0

3 years ago

Drag each statement to the correct location.

VMariaS [17]

Answer:

$(a)\ 222_{10} = DE_{16}$ --- True

$(b)\ D7_{16} = 11010011_2$ --- False

$(c)\ 13_{16} = 19_{10}$ --- True

Explanation:

Required

Determine if the statements are true or not.

$(a)\ 222_{10} = DE_{16}$

To do this, we convert DE from base 16 to base 10 using product rule.

So, we have:

$DE_{16} = D * 16^1 + E * 16^0$

In hexadecimal.

$D =13 \\E = 14$

So, we have:

$DE_{16} = 13 * 16^1 + 14 * 16^0$

$DE_{16} = 222_{10}$

Hence:

(a) is true

$(b)\ D7_{16} = 11010011_2$

First, convert D7 to base 10 using product rule

$D7_{16} = D * 16^1 + 7 * 16^0$

$D = 13$

So, we have:

$D7_{16} = 13 * 16^1 + 7 * 16^0$

$D7_{16} = 215_{10}$

Next convert 215 to base 2, using division rule

$215 / 2 = 107 R 1$

$107/2 =53 R 1$

$53/2 =26 R1$

$26/2 = 13 R 0$

$13/2 = 6 R 1$

$6/2 = 3 R 0$

$3/2 = 1 R 1$

$1/2 = 0 R1$

Write the remainders from bottom to top.

$D7_{16} = 11010111_2$

<em>Hence (b) is false</em>

$(c)\ 13_{16} = 19_{10}$

Convert 13 to base 10 using product rule

$13_{16} = 1 * 16^1 + 3 * 16^0$

$13_{16} = 19$

Hence; (c) is true

7 0

2 years ago

Choose the reasons why Windows Server operating systems are a popular choice for a network because they _____. Select all that a

solong [7]

Answer:

Windows Server operating systems are a popular choice for a network because they use wizards and setup devices as the user operating system, making it easier to set up network features work on networks that include using Windows operating systems as well as Mac OS, NetWare, or UNIX

Explanation:

Windows operating system is popular than any other operating system for certain reasons:

1. It provides GUI feature which any layman can access and learn easily

2. The compatibility that it provides makes it more popular

3. It supports most of the software program available in the market

4. The design of Windows is more comfortable when compared to other open source operating system.

Only thing is that it is not a free-ware. Licence needs to be purchased to use it.

6 0

3 years ago

On the Format tab, in the Shape Styles group, there is the option to change the _____. a. Shape Effects b. Shape Fill c. Shape O

makvit [3.9K]

Hey there! Hello!

The answer to this problem will be D, "All Of The Above." I've attached a picture that shows the Shape Format tab in Microsoft Word. You can see in the dropdown that there's options for all three of your listed choices: Shape Fill, Shape Outline, and Shape Effects.

I hope this helped you out! Feel free to ask me any additional questions if you have any. :-)

6 0

3 years ago