Physics, 16.10.2019 22:00 costel8532
Early humans used rocks as tools to make other things as well as to construct buildings. why was it better for them to use rocks than another material such as wood?
Answers: 3
Physics, 21.06.2019 17:00
Why is alternating current more effective at long–distance travel than direct current? a. the power lines are made out of conductors. b. transformers increase or decrease voltage as needed. c. the ac generator is more efficient. d. ac has lower voltage than dc.
Answers: 1
Physics, 22.06.2019 16:00
The electric potential a distance r from a small charge is proportional to what power of the distance from the charge? a. r^-1 b. r c. r^-2 d. r^2
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Physics, 23.06.2019 02:30
Two 1.20-m nonconducting wires meet at a right angle. one segment carries + 2.50 µc of charge distributed uniformly along its length, and the other carries - 2.50 µc distributed uniformly along it, as shown in fig. 21.50. ( a. find the magnitude and direction of the electric field these wires produce at point p, which is 60.0 cm from each wire. ( b. if an electron is released at p, what are the magnitude and direction of the net force that these wires exert on it?
Answers: 3
Physics, 23.06.2019 09:30
When you notice something that is happening, what are you making? a. an observation b. a law c. a theory d. an experiment
Answers: 2
Early humans used rocks as tools to make other things as well as to construct buildings. why was it...
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