All the sentences are wrong write the corrected version of them : 1) An object has number of electrons more than the protons is neutral.
2) A positive charge will attract another positive charge.
3) Protons are negatively charged.
4) Insulators allow electricity to flow through them.
5) Current is the flow of protons.
6) Current is measured in volt
7) in the factory model of circuits the shop represents the battery
8) in a series circuit the current increases if you add more components.
9) voltage is measured in volts using an ammeter
10) you can work out the energy from charge x time

Help please i will mark brain list !!!

After the near spacecraft passed mathilde, on several occasions rocket propellant was expelled to adjust the spacecraft's momentum in order to follow a path that would approach the asteroid eros, the final destination for the mission. after getting close to eros, further small adjustments made the momentum just right to give a circular orbit of radius 45 km (45 × 10^3 m) around the asteroid. so much propellant had been used that the final mass of the spacecraft while in circular orbit around eros was only 545 kg. the spacecraft took 1.04 days to make one complete circular orbit around eros. calculate what the mass of eros must be.

Light that is polarized along the vertical direction is incident on a sheet of polarizing material. only 96% of the intensity of the light passes through the sheet and strikes a second sheet of polarizing material. no light passes through the second sheet. what angle does the transmission axis of the second sheet make with the vertical?

Two identical stars with mass m orbit around their center of mass. each orbit is circular and has radius r, so that the two stars are always on opposite sides of the circle. (a) find the gravitational force of one star on the other. (b) find the orbital speed of each star and the period of the orbit. (c) how much energy would be required to separate the two stars to infinity?