Physics, 14.02.2020 17:23 hervinlouis014
The cost of electricity varies widely throughout the United States; $0.120/kWh is a typical value. At this unit price, calculate the cost of the following.
a. Leaving a 40.0-W porch light on for 2 weeks while you are on vacation.
b. Making a piece of dark toast in 3.00 min with a 980 W toaster.
c. Drying a load of clothes in 40.0 min in a 4900 W dryer.
Answers: 2
Physics, 21.06.2019 22:20, kl8774
Aboxcar traveling at 12 m/s approaches a string of 5 identical boxcars sitting stationary on the track. the moving boxcar collides and links with the stationary cars and they all move off together along the track. what is the final speed of the cars immediately after the collision? (you may take the mass of each boxcar to be 18,537 kg.)
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The cost of electricity varies widely throughout the United States; $0.120/kWh is a typical value. A...
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