Physics, 13.10.2019 17:30 sumayyahjj
Which of the following has the greatest density?
a 10 g object with a volume of 10 cubic centimeter.
a 40 g object with a volume of 20 cubic centimeter.
a 20 g object with a volume of 5 cubic centimeter.
a 10 g object with a volume of 2 cubic centimeter.
Answers: 3
Physics, 21.06.2019 14:00
Apositive rod is placed to the left of sphere a, and the spheres are separated. which best describes the spheres? sphere a is negative and sphere b is positive because protons from sphere a are attracted to the rod and move to sphere b. sphere a is negative and sphere b is positive because electrons from sphere b are attracted to the rod and move to sphere a. sphere a is positive and sphere b is negative because electrons from the rod move to sphere b and protons then move to sphere a. sphere a is positive and sphere b is negative because protons move from sphere b to the rod and also to sphere a.
Answers: 1
Physics, 21.06.2019 15:00
The functioning of an electron transport chain is analogous to a) a slinky toy going down a flight of stairs. b) a canoe going over a waterfall. c) a person climbing a flight of stairs one step at a time. d) a person leaping from the top to the bottom of a flight of stairs in one jump.
Answers: 2
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, 21.06.2019 20:00
Afixed electric space heater wired by a cable with an ampacity of 30 a should draw a maximum current of a. 30 a. b. 24 a. c. 15 a. d. 27 a.
Answers: 2
Which of the following has the greatest density?
a 10 g object with a volume of 10 cubi...
a 10 g object with a volume of 10 cubi...
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