Physics, 10.11.2021 01:00 rachelsweeney10
một dây dẫn làm bằng vonfram có điện trở suất 5,5x10^-8 ômxmet . đường kính tiết diện 1mm và có chiều dài 5m , đặt dưới hiệu điện thế U=35V . nhiệt lượng toả ra trên dây trong thời gian 40 phút theo đơn vị jun và calo là bao nhiêu
Answers: 1
Physics, 21.06.2019 20:10
Current 1 of 8.4 a runs for 240 seconds and then stops. current 2 is 10.5 a. how long does current 2 have to un to deliver the same amount of charge as current 1? 88.28 192 s 2016 s 21,000 s
Answers: 2
Physics, 21.06.2019 20:50
Aball is thrown upward in the air, and its height above the ground after t seconds is h ( t ) = 57 t − 16 t 2 feet. find the time t when the ball will be traveling upward at 14.25 feet per second.
Answers: 1
Physics, 21.06.2019 23:20
From center station, a train departs every 30 minutes on the fast line and a train departs every 50 minutes on the state line. if two trains depart from center station at 8: 00 a.m., one on each of the two lines, what is the next time that two trains, one on each line, will depart at the same time?
Answers: 1
Physics, 22.06.2019 10:00
In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j? 1. write the equation 2.list out your known variables 3.plug the numbers into the equations 4.solve 5.write your solution statement that includes initial energy and final
Answers: 3
một dây dẫn làm bằng vonfram có điện trở suất 5,5x10^-8 ômxmet . đường kính tiết diện 1mm và có chiề...
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