A vehicle travels 57 kilometers north and then travels 26 kilometers south. What is the current position of the vehicle? 26 kilometers south of its starting location.
83 kilometers from its starting location.
31 kilometers north of its starting location.
83 kilometers north of its starting location.

answer: the rock sample is a sedimentary rock.

explanation:

it is given that:

mass of rock sample, m = 2.7 g

volume of rock sample,

so, density of rock sample will be

since, the density of rock sample is . hence, the rock sample is a sedimentary rock, whose densities varies between .

no. bullets are macro objects. wave nature is for light waves, extremely tiny particles. if a light particle was the size of your finger, the bullet would be the size of the universe. so basically, that huge difference in size makes the wave nature of matter insignificant.