Wo cars start moving from the same point. One travels south at 60 mi/h and the other travels west at 25 mi/h. At what rate is the distance between the cars increasing three hours later?

Explanation:

let distance between two  cars  is = z  mi

we have to find  =

One travels south at  = 60 mi/h  =   (given)

the other travels west at =25 mi/h.=  (given)

since both car have constant speed

at t = 3 hrs

x = 3× 60  = 180 mi/h

y = 3 × 25  = 75 mi/h

from the figure (i)  we get

...............(i)

put x and y values

we get

differentiate the equation (i) w r to t

put each values

the temperature and the pressure affect solubility. temperature affects by changing the properties of the solvent. the increase in pressure increases solubility, the decrease in pressure decreases solubility.

a.) travels faster in solids because the particles are closer together.

air is a gas water is a liquid