Two identical small charged spheres are a certain distance apart, and each one initially experiences an electrostatic force of magnitude F due to the other.
With time, charge gradually leaks off of both spheres. When each of the spheres has lost half its initial charge, the magnitude of the electrostatic force will be
A) 1/4 F. B) 1/8 F. C) 1/2 F. D) 1/16 F.
Question 2
A circular coil of wire of 200 turns and diameter 2.0 cm carries a current of 4.0 A. It is placed in a magnetic field of 0.70 T with the plane of the coil making an angle of 30 with the magnetic field. What is the magnetic torque on the coil?
A) 0.15 N m
B) 0.088 N m
C) 0.29 N m
D) 0.40 N m
E) 0.076 N m
Species richness decreases with distance from the source pool.
Because of immature visual-motor coordination, young children find it hard to throw and catch small ...
Common skin signs are often evidence of an illness or disorder. A vesicle is a small fluid filled ...
Newborn Experiences Across Cultures
Finding the length given total distance and distance longer than other point
An 8th grade class develops a linear model that predicts the number of cheerios (a small round ...