Q. Two objects attract each other gravitationally with a force of 2.9 10-10 N when they are 0.31 m apart. Their total mass is 4.0 kg. Find their individual masses.
Q. A 44.0 cm diameter loop is rotated in a uniform electric field until the position of maximum electric flux is found. The flux in this position is 5.40 105 N·m2/C. What is the magnitude of the electric field?