List two advantages and two disadvantages of hydrogen fuel cells.

Which statements are true about solving a problem? Choose all that apply. The best approach is to jump right in with a possible solution. The best approach is to thoroughly understand the problem before designing a solution.

How long does it take to transfer this file from the time that you start sending the first bit of your file till the time the last bit of your file arrives at the destination. Give your answer in milli-seconds.

What is the purpose of the "def" keyword in Python? a) It is slang that means "the following code is really cool" b) It indicates the start of a function c) It indicates that the following indented section of code is to be stored for later d) b and

Write a recursive function named sumSquares that returns the sum of the squares of the numbers from 1 to num, in which num is a nonnegative int variable. Do not use global variables; use the appropriate parameters.

Have you been tempted to do something online that you wouldn't do if people knew it was you?

If a company doesn't distribute a computing use policy stating an employer's right to inspect employees' computers freely, including e-mail and Web use, employees have an expectation of privacyA. TrueB. False.

Give 5 computer input devices and explain how they work

Take some time to do some research about small businesses in your area. Select one and using HTML design a simple site that educates people on what it has to offer. You will not be able to create a shopping cart or include detailed information.

Create a program that asks the user to enter grade scores. Use a loop to request each score and add it to a total. Continue accepting scores until the user enters a negative value. Finally, calculate and display the average for the entered scores.

Green computing involves reducing electricity consumed and environmental waste generated when using a computer. which of the following is a valid strategy for supporting green computing?