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3 years ago

At what minimum rate is a 60.0-kg boy using energy when, in 8.00 s, he runs up a flight of stairs that is 10.0-m high?

Computers and Technology

1 answer:

masha68 [24]3 years ago

5 0

The answer is 735 W.

He runs up the stairs, so he needs a total amount of energy = mgh = 5880 Joules. For the rate: since he goes from zero energy to 5880 Joules over 8 seconds... Joules/sec = 5,880/8 = 735 W

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Is printer an input device

Anuta_ua [19.1K]

Answer:

Explanation:

Printer is a output device. It takes the input from the user and gives the output in the form of a texted document. It is called hard copy of our document. output device ... it takes input from computer and gives output in form of texted document or graphical document .

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3 years ago

Consider the following C code fragment:

wlad13 [49]

Answer:

Explanation:

Pointer arithmetic is tricky. The address is incremented by the sizeof the pointed element. A short is 2 bytes.

So adding 10 adds 20 bytes to the starting address of arr[].

In the expression, you're adding 10-6 = 4 to the start of the array, so you're pointing at the fifth element, arr[4] which is 10.

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3 years ago

A town decides to publicize data it has collected about electricity usage around the city. The data is freely available for all

tigry1 [53]

The answer is C.open data

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3 years ago

The block of code below is supposed to display “multiple of 5” if the positive number value is in fact a multiple of 5

12345 [234]

Answer:

Answer is (value MOD 5) = 0.

Explanation:

A number A is multiple of another number B if after dividing A by B remainder value is zero.

In mathematics modulo or (MOD) function is a function which returns remainder value after dividing two numbers.

Here in question for condition

( value MOD 5 ) = 0 code will print "Multiple of 5". For each value which is divisible by 5 we will get zero remainder implying that value is a multiple of 5.

3 0

3 years ago

Create and test a user-defined function named ufnFullName that combines the values of the two parameters named FirstName and Las

8090 [49]

Answer:

public static String ufnFullName(String Fname, String Lname){

String FullName = Fname+" "+Lname;

return FullName;

}

Explanation:

Using Java programming language, the function is created to accept two String parameters (Fname and Lname)

These are concatenated into a new String FullName and returned by the function

See below a complete code that prompts users to enter value for first and last names then calls this method to display the full name

import java.util.Scanner;

public class FullName {

public static void main(String[] args) {

System.out.println("Enter First Name");

Scanner in = new Scanner(System.in);

String Fname = in.next();

System.out.println("Enter Last Name");

String Lname = in.next();

System.out.println("Your Full Name is "+ufnFullName(Fname,Lname));

}

public static String ufnFullName(String Fname, String Lname){

String FullName = Fname+" "+Lname;

return FullName;

}

}

8 0

3 years ago