Two charged particles experience a gravitational force of 1.4 * 10 ^ - 8 * N and an electric force of 1.3 N. The 1.5 g particle has a 2.1 * 10 ^ 6 * C charge and is separated from a 6.7 particle. What is separation distance and what is the charge of the second particle ?

The seven sisters, seven stars located more than 400 light-years away in the taurus constellation can be seen here with venus and another constellation, orion. the seven stars stay grouped together but seem to move, like the planet venus. why do stars seem to move like planets in the night sky?

You have a pick-up truck that weighed 4,000 pounds when it was new. you are modifying it to increase its ground clearance. when you are finished

Wave functions describe orbitals in a hydrogen atom. each function is characterized by 3 quantum numbers: n, l, and ml. if the value of n = 2: the quantum number l can have values from to . the total number of orbitals possible at the n = 2 energy level is .