The weight, w, of a spring in pounds is given by 0.9 times the square root of the energy, e, stored by the spring in joules. if the energy stored by the spring is 12 joules, what is the approximate weight of the spring in pounds?

3.12 pound.

Step-by-step explanation:

Energy due to weight, w, of the spring = 0.9 × will be represented by

If energy stored by the spring is 12 joules.

Then weight of the spring will be

m'g = w' = 0.9

             = 0.9 × 3.46

             = 3.12 pounds

The approximate weight of the spring  is 3.12 pound.

answer: since the question is talking about growth you have to use the growth formula which is inital amount (1 + growth)^time

step-by-step explanation:

the intial amount is 1200, the growth is 4.8, and the time is 7. plug those numbers into the equation, also i think you have to change 4.8 into a percent. but, i have forgotton how to do that. if this is a online class go on to the lesson.