Answer:
Approximately (given that the magnitude of this charge is .)
Explanation:
If a charge of magnitude is placed in an electric field of magnitude , the magnitude of the electrostatic force on that charge would be .
The magnitude of this charge is . Apply the unit conversion :
.
An electric field of magnitude would exert on this charge a force with a magnitude of:
.
Note that the electric charge in this question is negative. Hence, electrostatic force on this charge would be opposite in direction to the the electric field. Since the electric field points due south, the electrostatic force on this charge would point due north.
A because the normal force always acts perpendicular and away from the surface an object is in contact with.
Answer:
B will take 1.034 times the time of A from Boston to Hartford.
Explanation:
Let the distance from Boston to Hartford be S.
Person A drives at a constant speed of 55 mph for the entire trip,
Time taken by person A
Person B drives at 65 mph for half the distance and then drives 45 mph for the second half of the distance.
Time taken by person B
Ratio of time of arrival of B to A
B will take 1.034 times the time of A from Boston to Hartford.
The formula for final velocity is Speed= distance/time (s=d/t)
Velocity is another word for speed.
The acceleration would be 5 because 12 divided by 60 equals 5