Answer:
I think A not sure took this test 5 yrs ago
Explanation:
The track has a circumference of 400 m. This is the distance traveled per lap.
Because the person made 8 laps, the total distance traveled is
8 * 400 = 3200 m
The time taken for the 8 laps is 14.0 min = 14*60 = 840 s.
The average velocity
= distance/time
= (3200 m)/(840 s)
= 3.8095 m/s
Answer: 3.8 m/s (nearest tenth)
Vi=0
T=3.07s
D=46m
A=?
A=2(d)/t ^2
2(46)/3.07^2=9.8m/s^2
Answer:
M = I A definition of magnetic moment - current * area
A = π R^2 = π * (6.4E6)^2 = 1.3E14 m^2
I = 8E22 A-m^2 / 1.3E14 m^2 = 6.2E8 amperes
I = 620,000,000 amps
They were produced inside stars.