Physics, 18.09.2021 14:00 kameronstebbins
Câu 6: Hai điện tích điểm có độ lớn bằng nhau và, bằng 4.10-8C, đặt trong chân không, hút
nhau một lực bằng 0,009N. Khoảng cách giữa hai điện tích là:
a) 0,2cm. b) 4cm. c) 1,6cm d) 0,4cm
Answers: 1
Physics, 22.06.2019 12:00
Infrared radiation has wavelengths that are shorter than visible light is part of the visible light spectrum has wavelengths that are longer than visible light has the same wavelengths as ultraviolet radiation
Answers: 1
Physics, 22.06.2019 17:40
Along wire carrying a 4.2 a current perpendicular to the xy-plane intersects the x-axis at x=−1.7cm. a second, parallel wire carrying a 3.0 a current intersects the x-axis at x=+1.7cm. part a at what point on the x-axis is the magnetic field zero if the two currents are in the same direction? express your answer to two significant figures and include the appropriate units.
Answers: 2
Physics, 23.06.2019 01:00
Two positive charges are equal. which has more electric potential energy?
Answers: 1
Physics, 23.06.2019 03:30
Geologists get to play with chemistry, physics, and history! and what a history you will meet as youwork your way through the course. starting at the beginning, the textbook provides the scientifically acceptedstart of the and promises that you'll get to explore some of the evidence for that scientific view, later inthe semester. meanwhile, which is more nearly correct of the scientifically accepted view? a) the earth formed when the big bang caused older materials to fall together, about 14 billion years ago.b) the earth formed from the falling together of older materials, about 4.6 billion years ago.c) the earth formed in the big bang, about 6000 years ago.d) the earth is eternal, having been here forever and promising to be here forever.e) the earth was assembled by gigantic space beavers, which gnawed down the primordial tree of life andpiled its branches together to form the planet.
Answers: 3
Câu 6: Hai điện tích điểm có độ lớn bằng nhau và, bằng 4.10-8C, đặt trong chân không, hút
nhau một...
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