Which of these statements about neutrons is true? . . a.. neutrons travel around the nucleus of an atom.. . b.. a neutron has no charge.. . c.. neutrons have less mass than electrons.. . d.. the number of neutrons in an atom always equals the number of electrons.

Two 1.20-m nonconducting wires meet at a right angle. one segment carries + 2.50 µc of charge distributed uniformly along its length, and the other carries - 2.50 µc distributed uniformly along it, as shown in fig. 21.50. ( a. find the magnitude and direction of the electric field these wires produce at point p, which is 60.0 cm from each wire. ( b. if an electron is released at p, what are the magnitude and direction of the net force that these wires exert on it?

You throw a baseball directly upward at time =0 at an initial speed of 14.9 m/s. what is the maximum height the ball reaches above where it leaves your hand? ignore air resistance and take =9.80 m/s2.

Anika asks eva to roll a basketball and then a bowling ball to her. which requires more force to roll, and why?