You can identify a pure substance if you know it's ?

Aria drove to the store, did some shopping, and then came home. during maria's trip, when was her displacement equal to zero?

Describe how the motion of a spring being pushed forward and backward is similar to the motion of air particles in a sound wave.

The gravitational force between pluto and charon is 3.61 × 1018 n. pluto has a mass of 1.3 × 1022 kg, which is only slightly greater than charon’s mass of 1.6 × 1021 kg. how far apart are pluto and charon? 2.0 × 107 m 2.4 × 1012 m 3.8 × 1014 m 5.8 × 1024 m