(blank) do not have definite shape or volume

Which of the following changes to a pipe would increase the conductance by a factor of 12? 1.quadrupling the length and tripling the radius.2.reducing the length by a factor of and doubling the radius.3.tripling the length and reducing the radius by a factor of .4.reducing the length but a factor of and doubling the radius.

Ais not a mixture. colloid compound suspension solution

Aspring that is stretched 2.6 cm stores a potential energy of 0.053 j. what is the spring constant of this spring?