Two point charges are placed on the x axis as follows: Charge q1 = 3.85nC is located at x = 0.215m , and charge q2 = 4.95nC is at -0.310m . What are the magnitude and direction of the net force exerted by these two charges on a negative point charge q3 = -0.620nC placed at the origin?

Animals respond in various ways to stimuli detected through their senses. some of these responses are stimulated by the presence of danger. which of these animal responses is the best example of a response to an immediate threat? a) a rooster crows every morning at the first sign of light. b) as something approaches an octopus, it shoots a cloud of ink. c) from late fall until spring, bears hibernate to preserve energy. reactivate d) a dog is getting hot in the sunlight, so he moves to a shaded area.

Amodel rocket with a mass of 0.212 kg is launched into the air with an initial speed of 84 m/s. how much kinetic energy will the rocket have at a height of 214 m? assume there is no wind resistance. 634 j 303 j

When you hold a rectangular object, how does the area of the side that is resting on your hand affect the pressure and the force that the object exerts?