How long does it take an automobile traveling 72.5 km/h to become even with a car that is traveling in another lane at 54.5 km/h if the cars front bumpers are initially 141 m apart

7.83

Explanation:

Just using the speed ,distance and time relation..Let time be T

Use this formula and find the distance covered by automobile .

Do same for car ..

and at last subtract the distance of automobile to car =141.

i.e (Distance of automobile -Dist.of car )=141

a charge 3q is at the origin, and a charge −2q is on the positive x axis at x=a. part a where on the x-axis would you place a third charge so it would experience no net electric force? enter an expression for the exact answer, which will involve a square-root sign. (do not enter an approximate decimal answer.)

number of electrons for neutral cl