Me ! 2 skaters with the same mass faace each other standing still, both skaters push off the other and they move in opposite directions. which of the following is true? they have zero momentum before pushing off? the total momentum is 0 after pushing off? they have equal and opposite momenta? all of the statements are true? in ! : )

How is the gravitational force related to the distance between two objects?

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?

(a) calculate the number of electrons in a small, electrically neutral silver pin that has a mass of 10.0 g. silver has 47 electrons per atom, and its molar mass is 107.87 g/mol. (b) imagine adding electrons to the pin until the negative charge has the very large value 1.00 mc. how many electrons are added for every 109 electrons already present