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Tomtit [17]
2 years ago
9

A computer with a 240-watt power supply is connected to a 120 V circuit and is left on continuously for one month (31 days). How

much current does it draw? What is the resistance of the computer? How much energy does the computer use if it does not enter a power save mode? If electricity costs $0.11/kW hr, how much does it cost to leave the computer on for a month?
Computers and Technology
1 answer:
KIM [24]2 years ago
5 0

Answer:A load has resistance and this is measured in ohms. Every electrical device or load has resistance. Resistance is like a restriction to the flow of electrons and electricity is dissipated as heat energy in a resistance. For a fixed voltage applied to a load, the higher the resistance, the lower the current. Going back to the water analogy, when you stand on a hose, you increase the resistance and restrict the flow. The only way to restore the flow is by getting the pump to pump harder, and force water through the restriction, i.e. the pump needs to have a higher pressure. Alternatively if you take your foot off the hose, you increase the diameter and lower the resistance and more water can be forced through. In an electrical circuit, if the voltage is increased, more current is forced through the resistance. If the resistance is lowered, more current will flow even if the voltage doesn't change. Even connecting wires in a circuit have resistance, so when high currents need to be carried by a cable, it needs to have a sufficiently large diameter and cross sectional area (CSA) to avoid overheating.

Explanation: There is adherence to the Newton laws

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Give the logical function for the following: If cell B7 equals 12, check contents of cell B10. If cell B10 is 10, then the value
ASHA 777 [7]

Answer:

=IF( B7 = 12, ( IF( B10 = 10,"YES", "")), 7) and PRESS ENTER

Explanation:

the above logical if function checks the following

-IF cell B7 is 12, if true, check the value of cell B10, IF cell B10 contains 10 the function should produce YES as output to whatever cell selected, IF B10 is not 10 output of the function should be an empty string, IF B7 is not equal to 12 the the output of the function should be 7.

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2 years ago
Which of the following represents the bus topology? Multiple Choice All devices are connected to a central device, called a hub.
Yanka [14]

Answer: All devices are connected to a central cable or backbone.

Explanation:

"All devices are connected to a central cable or backbone". Bus Topology refers to a logical or physical network's design. Bus Topology is also the network setup for a LAN (Local Area Network) nodes connected to a "backbone" or cable. The Bus setup connects every single computer and network to a single cable. Among others, the type of cable implemented for bus topology is usually a coaxial cable.

3 0
2 years ago
Write a program that creates a dictionary containing the U.S. states as keys and their capitals as values. (Use the Internet to
Dima020 [189]

Answer:

  1. import random  
  2. states = {
  3.    "Alabama": "Montgomery",
  4.    "California": "Sacramento",
  5.    "Florida": "Tallahassee",
  6.    "Hawaii": "Honolulu",
  7.    "Indiana": "Indianapolis",
  8.    "Michigan": "Lansing",
  9.    "New York": "Albany",
  10.    "Texas" : "Austin",
  11.    "Utah" : "Salt Lake City",
  12.    "Wisconsin": "Madison"
  13. }
  14. correct = 0
  15. wrong = 0
  16. round = 1
  17. while(round <= 5):
  18.    current_state = random.choice(list(states))
  19.    answer = input("What is the capital of " + current_state + ": ")
  20.    
  21.    if(answer == states[current_state]):
  22.        correct += 1
  23.    else:
  24.        wrong += 1
  25.    
  26.    round += 1
  27. print("Correct answer: " + str(correct))
  28. print("Wrong answer: " + str(wrong))

Explanation:

The solution code is written in Python 3.

Line 3 -14

Create a dictionary of US States with capital as each of their corresponding value. Please note only ten sample states are chosen here.

Line 16 - 18

Create variables to track the number of correct and inaccurate response and also round counter.

Line 19 - 28

Set the while condition to enable user to play the quiz for five questions and use random.choice to randomly pick a state from the dictionary and prompt user to input the capital of selected stated.

If the answer matched with the capital value of the selected state, increment the correct counter by one. Otherwise the wrong counter will be incremented by one. Increment the round counter by one before proceed to next round.

Line 30 - 31

Print the number of correct responses and wrong responses.

7 0
2 years ago
Skylar is viewing her personal and business calendar in a side-by-side fashion, but she would like to view a single calendar tha
pogonyaev

Answer:

The solution for the current situation in which Skylar is viewing her personal and business calendar in a side-by-side fashion, but she would like to view a single calendar that has appointments and meetings from both personal and business. is:

Configure the Overlay option.

Explanation:

The reasons behind this answer are that in the first place, creating another calendar is too much work. In the second place, the share of the calendars is not going to help her because that would only allow someone else to watch her calendars. However, using the overlay option will allow her to mix them and create one calendar with all her information.

8 0
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Cloud-based services can open doors to leveraging Artificial Intelligence (AI) without dramatically increasing risk. Which clien
vladimir1956 [14]

Answer:

Explanation:

The clients that would be best suited for this opportunity would be small business or business' that do not have the hardware/space resources necessary to create the computing power that they need. Instead, they can simply pay for these cloud-based services which provide all of the necessary computing/hardware power and resources necessary so that the company can easily fulfill all of their tasks without any problems. Bigger companies can easily pay for and implement their own hardware to solve their problems which may benefit them even more in the long-term.

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