A 20 kg roller coaster car started from point A at a height of 100m. What is its speed at point B?

here we know that ball will drop down by total distance 3.2 m

so here we know that

now using kinematics

now in the same time it will cover horizontal distance of 0.75 m

so speed of the ball will be

v 154.9= 0.9 length length s little over 154.9cm

part 1: which substance has a higher solubility?

a

smallest amount left undissolved atall temps in table shown most has dissolved high sol'by