A disk of radius r= 70 cm has a uniform surface charge density o= 79,5 nC. Calculate the electric field (in units of kN/O at point P that lies along the central perpendicular axis of the disk and a distance 30 cm from the center of the disk, use k. 9x10 N-m²/C² Select one: CA. 1.77 OB. 1.36 OC.5.45 OD. 2.72 DE 5.90
A disk of radius r= 70 cm has a uniform surface charge density o= 79,5 nC. Calculate the electric field (in units of kN/O at point P that lies along the central perpendicular axis of the disk and a distance 30 cm from the center of the disk, use k. 9x10 N-m²/C² Select one: CA. 1.77 OB. 1.36 OC.5.45 OD. 2.72 DE 5.90
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Transcribed Image Text:A disk of radius r= 70 cm has a uniform surface charge density o= 79,5 nC. Calculate the electric field (in units of kN/O at
point P that lies along the central perpendicular axis of the disk and a distance 30 cm from the center of the disk. use k. =
9x10 N-m2/C²
Select one:
CA 1.77
OB. 1.36
OC. 5.45
OD. 2.72
CE 5.90
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09:15
Transcribed Image Text:The velocity of a particle (m 10 mg, q = - 4.0 uC) at t 0 is 20 m/s in the positive x-direction. If the particle moves in a
uniform electric field of 20 N/C in the positive x-direction, what is the particle's velocity ( in m/s) at t= 13.6 s?
Select one:
OA-34.40
OB. 74.40
OC 128.80
OD. -88.80
OE 47.20
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