Physics, 21.10.2021 23:40 igobeastmode
Trong việc truyền tải điện năng đi xa, khi tăng điện áp hiệu dụng ở hai đầu đường dây tải điện (ở nhà máy điện) lên 20 lần thì công suất hao phí do tỏa nhiệt trên đường dây
Answers: 2
Physics, 22.06.2019 02:30
Power can be defined as a. the distance over which work was done. b. how much work can be done in a given time. c. all the work in an given area. d. the energy required to do work.
Answers: 1
Physics, 22.06.2019 07:00
The speed of sound in ice, water, and steam is shown. what best explains the speed of sound in different states of matter? sound travels fastest in ice because energy is easier to transfer when the molecules are close together. sound travels slowest in steam because the sound has to move around the gas molecules that are far apart. sound travels fastest in ice because the temperature of solids is always greater, so the heat transfers the sound energy. sound travels slowest in steam because the pressure is so great the sound cannot travel though the steam particles.
Answers: 1
Physics, 22.06.2019 10:40
When the magnetic domains in a material can be aligned, but eventually drift out of alignment, the material is
Answers: 2
Physics, 22.06.2019 12:50
The heliocentric and the geocentric models of the solar system included these central principles
Answers: 1
Trong việc truyền tải điện năng đi xa, khi tăng điện áp hiệu dụng ở hai đầu đường dây tải điện (ở nh...
Mathematics, 10.10.2019 06:30
Chemistry, 10.10.2019 06:30
Mathematics, 10.10.2019 06:30
Chemistry, 10.10.2019 06:30
English, 10.10.2019 06:30
Health, 10.10.2019 06:30
Geography, 10.10.2019 06:30
Mathematics, 10.10.2019 06:30