Physics, 04.07.2019 01:30 paytonthalacker
A- your electrical bill last month was 790 kwh for 30 days of power. if coal was the only source of electricity for your house, how much coal (burned with 30% efficiency) does 790 kwh equate to? if you used the same amount of electricity each month of the year, how much coal is required? b- a typical day at university uses the same amount of electricity as that of 7,000 homes. how many joules are required to power one day at university? how much coal, burnt at 30% efficiency, does this equate to?
Answers: 1
Physics, 22.06.2019 18:30
An electron in an x-ray machine is accelerated through a potential difference of 1.00 × 104 v before it hits the target. what is the kinetic energy of the electron in electron volts?
Answers: 2
Physics, 22.06.2019 19:30
How many electrons in an atom could have these sets of quantum numbers? =3n=3 electronselectrons =4,ℓ=2n=4,ℓ=2 electronselectrons =6,ℓ=ℓ=−1n=6,ℓ=2,mℓ=−1
Answers: 3
Physics, 23.06.2019 03:20
2. which of the following does not affect the electrical resistance of a body? a. material composing the body b. bodies directly surrounding the body c. length of the body > d. temperature of the body
Answers: 2
Physics, 23.06.2019 18:00
A5.0 kg box is on a frictionless surface. two forces act on the box as shown below. which best describes the motion of the box? the box will not move. the box will accelerate to the right. the box will move to the right with constant velocity. the box will move to the left with decreasing speed.
Answers: 1
A- your electrical bill last month was 790 kwh for 30 days of power. if coal was the only source of...
Physics, 23.11.2019 18:31
Mathematics, 23.11.2019 18:31
Computers and Technology, 23.11.2019 18:31
Biology, 23.11.2019 18:31
Social Studies, 23.11.2019 18:31
Mathematics, 23.11.2019 18:31
Mathematics, 23.11.2019 18:31
Biology, 23.11.2019 18:31
Health, 23.11.2019 18:31