Answer:
It takes approximately 52 min to drive from San Jose to San Francisco.
Explanation:
Answer:
Yes electric field between the line joining may be zero when both the charges are of opposite magnitude
Explanation:
Electric field due to a point charge is given by 
From the relation of magnitude of electric field we can see that magnitude of electric field depends upon the m,magnitude of charge and distance between them
So electric field between the line joining may be zero when both charges are of opposite magnitude ( Means if one charge is positive then other is negative )
Answer:
C. It remained at a constant speed
We may balance the forces in order to calculate the tension.
We know that there are no horizontal forces being applied. Next, the vertical forces are:
Weight (W) which is acting downwards
Tension in each wire (T) which is acting upwards
Because the sign is stationary, the downward force must equal the upward force. So we may write:
Weight = 4 * tension
W = 4T
100 = 4T
T = 25 N
The tension in each wire is 25 Newtons