tonypewitt
04.07.2020 •
Physics
At the equator, near the surface of the Earth, the magnetic field is approximately 50.0 μT northward, and the electric field is about 90.0 N/C downward in fair weather. Find the gravitational, electric, and magnetic forces on an electron in this environment, assuming that the electron has an instantaneous velocity of 8.00 ✕ 106 m/s directed to the east.
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Ответ:
gravitational force = m*g
= 9.1*10^-31 * 9.8
= 8.92*10^-30 N
acts downward
electric force = q*E
= (1.6*10^-19)*(90)
= 1.44*10^-17 N
DIRECTION : upward
magnetic force = q*V*B
= (1.6*10^-19)*(8*10^6)*(50*10^-6)
= 6.4*10^-17 N
direction = downward
Ответ:
It is acceleration that changes with time.