10. The Force between two objects is 2 Newtons. One object has a mass of 6.2kg. If the distance between the center of one object to the center of the other
object is 45 meters, what is the mass of the second object? *

Work out sian speed for the first 30 minutes of her journey. give your answer in km/h.

What do the atoms of elements in the same group have in common? a. they have the same atomic numbers. b. they have the same average atomic masses. c. they have the same number of electron shells. d. they have the same number of electrons in their outermost shells.

On mars a rock falls an unknown vertical distance from a resting position and lands in a crater. if it takes the rock 2.5 seconds to fall, how high is the cliff the rock fell from? mars' surface gravity is 3.8 m/s2.