The diameter of a car's suspension spring decreases uniformly. the force exerted by the spring is given by f = axb. consider a suspension spring that compresses x1 = 11.9 cm with a 1,000 n load and x2 = 33.5 cm with a 5,000 n load. (due to the nature of this problem, do not use rounded intermediate values in your calculations—including answers submitted in webassign.) a)evaluate a and b in the empirical equationf=ax^b and
b) find the work needed to compress the spring 25.0 cm.

Beryl states that insulation with the smallest possible thermal conductivity is best to keep a house warm in winter, but worst for keeping a house cool in summer. sapphire insists the reverse is true: low thermal conductivity is good in the summer, but bad in the winter. which one, if either is correct? a. beryl, because low thermal conductivity results in low heat transfer. b. beryl, because low thermal conductivity results in high heat transfer. d. sapphire, because low thermal conductivity results in high heat transfer. e. neither, because low heat transfer is desirable both in summer and in winter.