A roller coaster with a mass of 1500 g needs to be accelerated at 2m/s² along the track. How much force is needed to move the coaster?

1. list three scientific reasons cockroaches may fly.

The table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 10 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.

Why are people not able to skip a dive to the deepest part of the ocean