Neptune orbits the Sun at an average distance given in the
diagram, which allows gases, such
as methane, to condense and form
an atmosphere.
If the mass of the Sun is
1.99Å~1030 kg, calculate the period
of Neptune’s orbit.
165 years

Idon’t quite understand this problem

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?

Avoltaic cell converts chemical energy to