Which type of power system should Gavin use to create the device in the following scenario?

ferry boat steamed along at 8 mph through calm seas, passenger casey exercised by walking the perimeter of the rectangular deck,

olga_2 [115]

Tell me why i got this question got it right and now won’t remember but i’ll get back at you when i remember

6 0

3 years ago

Chemical manufacturers must present which information on the product's label?

Wewaii [24]

Answer:

hazardous chemicals leaving the workplace is labeled, tagged or marked with the following information: product identifier; signal word; hazard statement

Explanation:

this is so you know what chemicals are in it

6 0

4 years ago

Which of the following have the capacity to display formatted data?

sukhopar [10]

Answer:

D. A and B

Explanation:

1. The method Console.Write() is an overloaded method in a language like C#.

One of its variations could be as follows;

Console.Write(String format, Object a, Object b).

This contains three parameters and will write the text representation of the specified objects to the standard output stream using the information specified by the format specifier. Parameter 1 is format which is a composite format string representing the format specifier. Parameter 2 is a, which is the first object to be written using format. Parameter 3 is b, which is the second object to be written using format.

2. The method Console.WriteLine() has the same characteristics as Console.Write() above, except that it writes the text representation of the specified objects, followed by current line terminator then to the standard output stream using the information specified by the format specifier.

3. Console.WriteFormat() does not exist, at least not in C# or .NET

Therefore, Console.Write() and Console.WriteLine() have the capacity to display formatted data.

Hope this helps!

6 0

3 years ago

Water circulates throughout a house in a hot water heating system. If the water is pumped at a speed of 0.50m/s through a 4.0-cm

igor_vitrenko [27]

Answer:

velocity and pressure in a 2.6-cm:

P2 = 2.53x10^5Pa, v2 = 1.18m/s

Explanation:

Pressure = P, Velocity = v, Height = h, Diameter = d, Radius= r, Area = A

Area = πr^2

From the question:

v1 = 0.5m/s

d1 = 4cm = 0.04m

r1 = d1/2 = 0.04/2 = 0.02m

Since water was pumped from basement, h1 = 0m

P1 = 3.03x10^5 Pa

A1 = π×0.02×0.02

A1 = 0.0004πm^2

v2 = unknown

d2 = 2.6cm = 0.026m

r2 = d2/2 = 0.026/2 = 0.013m

h2 = 5m

P2 = unknown

A2 = π×0.013×0.013

A2 = 0.000169πm^2

Using continuity equation:

A1v1 = A2v2

0.0004π * 0.5 = 0.000169π * v2

v2 = (0.0004π * 0.5)/(0.000169π)

v2 = 1.18m/s

Applying a Bernoulli principle

P + 1/2*density*v^2 + density*g*h =C

C = constant

P1 + 1/2*density*v1^2 + density*g*h1

= P2 + 1/2*density*v2^2 + density*g*h2

Let g = 9.81m/s

density of water = 1000kg/m^3

(P1-P2) = 1/2* density(v2^2 - v1^2) +(density*g*h2) - (density*g*h1)

(P1-P2) = 1/2* density(v2^2 - v1^2) +

density* g(h2-h1)

(3.03x10^5 - P2)= 1/2*1000 (1.18^2-0.5^2) + 1000(9.81(5-0))

(3.03x10^5 - P2) = 500(1.3924-0.25) + 49050

3.03x10^5 - P2 = 571.2 + 49050

3.03x10^5 - P2 = 49621.2

3.03x10^5 - 49621.2 = P2

P2 = 253378.8

P2 = 2.53x10^5Pa

P2 = 2.53x10^5Pa, v2 = 1.18m/s

7 0

3 years ago

Assume we have already defined a variable of type String called password with the following line of code: password' can have any

omeli [17]

Answer:

The Java code is given below with appropriate comments for better understanding

Explanation:

import java.util.Scanner;

public class ValidatePassword {

public static void main(String[] args) {

Scanner input = new Scanner(System.in);

System.out.print("Enter a password: ");

String password = input.nextLine();

int count = chkPswd(password);

if (count >= 3)

System.out.println("Secure");

else

System.out.println("Not Secure");

}

public static int chkPswd(String pwd) {

int count = 0;

if (checkForSpecial(pwd))

count++;

if (checkForUpperCasae(pwd))

count++;

if (checkForLowerCasae(pwd))

count++;

if (checkForDigit(pwd))

count++;

return count;

}

// checks if password has 8 characters

public static boolean checkCharCount(String pwd) {

return pwd.length() >= 7;

}

// checks if password has checkForUpperCasae

public static boolean checkForUpperCasae(String pwd) {

for (int i = 0; i < pwd.length(); i++)

if (Character.isLetter(pwd.charAt(i)) && Character.isUpperCase(pwd.charAt(i)))

return true;

return false;

}

public static boolean checkForLowerCasae(String pwd) {

for (int i = 0; i < pwd.length(); i++)

if (Character.isLetter(pwd.charAt(i)) && Character.isLowerCase(pwd.charAt(i)))

return true;

return false;

}

// checks if password contains digit

public static boolean checkForDigit(String pwd) {

for (int i = 0; i < pwd.length(); i++)

if (Character.isDigit(pwd.charAt(i)))

return true;

return false;

}

// checks if password has special char

public static boolean checkForSpecial(String pwd) {

String spl = "[email protected]#$%^&*(";

for (int i = 0; i < pwd.length(); i++)

if (spl.contains(pwd.charAt(i) + ""))

return true;

return false;

}

5 0

4 years ago