Aspring has a natural length of 0.5 m and was stretched by 0.02 m. if the spring had a resultant energy of 0.5 j what is the spring constant?

Explanation:

       Natural length of a spring is . The spring is streched by . The resultant energy of the spring is .

       The potential energy of an ideal spring with spring constant and elongation is given by .

       So, in the current problem, the natural length of the spring is not required to find the spring constant .

∴ The spring constant of the spring =

find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2