Operating cost for lights and coffee machines

In summary, The conversation is about finding the total cost for a business operating various electrical appliances for one year. The cost is calculated by multiplying the energy consumed by the rate. The conversation also includes a correction for the wattage of the coffee makers.
  • #1
Meeeessttteeehh
19
4
Had a bit of a hard time with this one. Anyone mind giving it a look over?

1. Homework Statement
Find the total cost for a business that operates the following for one year. Assume that the rate is 6.4₵/kWh.
· Fifteen 100 W light bulbs for an average of eight hours a day.
· Two 15 W coffee makers connected to a 120 V power supply for two hours a day each

Homework Equations


cost = E x rate
E = pt

The Attempt at a Solution


5.png
 

Attachments

  • 5.png
    5.png
    8.7 KB · Views: 292
Physics news on Phys.org
  • #3
The total cost was asked.
Find the total cost for a business that operates the following for one year.
 
  • #4
ehild said:
The total cost was asked.

Ohhhh, so the cost of the lights plus the cost of the coffee. Got it! Everything else seem right?
 
  • #5
Meeeessttteeehh said:
Ohhhh, so the cost of the lights plus the cost of the coffee. Got it! Everything else seem right?
No, I just noticed, that it was 15 W coffee makers instead of 15 ohm.
 
  • #6
ehild said:
No, I just noticed, that it was 15 W coffee makers instead of 15 ohm.

Oh jeez. Can you tell I'm tired? I just double checked the assignment, it is in fact Ohm's and the watts in the question was an error in my typing. Thanks for catching that!
 
  • #7
Yes, 15W for a coffee maker looked too little.
 

What is the average operating cost for lights and coffee machines?

The average operating cost for lights and coffee machines can vary depending on factors such as the type of light bulbs used, the energy efficiency of the coffee machines, and the frequency of usage. On average, however, the cost can range from $100 to $500 per year per machine.

How does the operating cost for lights and coffee machines affect a company's budget?

The operating cost for lights and coffee machines can significantly impact a company's budget as it is a recurring expense. By reducing energy consumption and choosing energy-efficient options, a company can save money in the long run and allocate more resources to other areas of the business.

What are some ways to reduce the operating cost for lights and coffee machines?

There are several ways to reduce the operating cost for lights and coffee machines, such as using LED or CFL light bulbs, investing in energy-efficient coffee machines, and implementing energy-saving practices such as turning off lights and machines when not in use.

How can a company accurately track the operating cost for lights and coffee machines?

A company can accurately track the operating cost for lights and coffee machines by keeping a record of energy bills and monitoring the usage of these machines. There are also energy monitoring systems available that can track and analyze energy consumption in real-time.

What are the long-term benefits of investing in energy-efficient lights and coffee machines?

The long-term benefits of investing in energy-efficient lights and coffee machines include cost savings, reduced energy consumption, and a positive impact on the environment. These machines can also have a longer lifespan, reducing the need for frequent replacements and maintenance costs.

Similar threads

Finding the Cost for Operating Coffee Machines
    • Introductory Physics Homework Help
Replies
1
Views
1K
Calculating the cost of electricity
    • Introductory Physics Homework Help
Replies
6
Views
5K
Calculating Power and Energy Consumption of Two Coffee-Makers
    • Introductory Physics Homework Help
Replies
6
Views
1K
Calculating Work Supplied by a Flywheel for Forming Machine Operations
    • Introductory Physics Homework Help
Replies
11
Views
940
Calculating Energy and Mass in Espresso Machine and Analyzing Cooling of Coffee
    • Introductory Physics Homework Help
Replies
33
Views
7K
Calculating Annual Cost of Running Coffee Makers
    • Precalculus Mathematics Homework Help
Replies
8
Views
3K
Thermal insulating materials suitable for making piston and cylinder?
    • Materials and Chemical Engineering
Replies
6
Views
1K
City requires about 15 MW of power problem
    • Introductory Physics Homework Help
Replies
14
Views
4K
Two 95 watt light bulbs walk into a bar ....
    • Electrical Engineering
Replies
22
Views
2K
Calculate the cost of the energy lost to heat per hour per meter
    • Introductory Physics Homework Help
Replies
5
Views
4K

Hot Threads

Recent Insights

Back
Top