Aunstretched spring hangs from the ceiling with a length of 0.31 m. a 9.1-kg block is hung from the spring and the spring stretches to be 0.50 m long. how long will the spring be if a 3.3-kg block is hung from the spring? for both cases, all vibrations of the spring are allowed to settle down before any measurements are made.

As we know that spring force is given by

here we know that for the equilibrium of the mass suspended with the spring we have

so now we have

now we have

now we have another mass

m = 3.3 kg

again from above equation we have

so final length of the spring will be 0.38 m

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