In fluids such as electrolytes (car battery)- positive and negative as well as may compose the flow of electric charge

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.

When the magnetic domains in a material can be aligned, but eventually drift out of alignment, the material is

What is the measure of how much matter is in an object and that can be measured using a balance? a. height b. volume c. weight d. mass