Q. An airplane is flying with a velocity of 86.0 at an angle of 26.0 above the horizontal. When the plane is a distance 119 directly above a dog that is standing on level ground, a suitcase drops out of the luggage compartment.How far from the dog will the suitcase land? You can ignore air resistance.
Q. Four point charges have the same magnitude of 2.4 × 10-12 C and are fixed to the corners of a square that is 4.0 cm on a side. Three of the charges are positive and one is negative. Determine the magnitude of the net electric field that exists at the center of the square.