How many electrons are there in a diatomic oxygen molecule

A baseball has a mass of 140 grams and a softball has a mass of 280 grams. In which of the following situations would they both have the same momentum?

a heavy person and a light person parachute together and wear the same size parachutes assuming they open their parachutes at the same time, which person reaches the ground first?

A 5kg mass has a force applied that changes its velocity from 8m/s to 2m/s in the same direction what is the change in momentum

When the medium is uniform, how do light waves travel through it?

A 3-kilogram ball is accelerated from rest to a speed of 10 m/sec. What is the ball's change in momentum?

What energy do electrons have when they are farther away from the nucleus?

200 525000 lololo Boat A is 10 km north of a port. Boat B is 5 km east of the same port. Boat A sails in a straight line towards boat B. Work out the bearing on which boat A sails.

Is Li greater than He on the periodic table?

White light falls on a yellow filter, if: (a) A green filter is placed behind a yellow filter, what is the colour of the light that will emerge from the green filter?

Calculate the energy equivalent in joules of the mass of a proton. [Show all work, including the equation and substitution with units.]