The torque needed to turn the torsion spring of a mousetrap through an angle is t = k1 + k2θ. experiments produce the following data: θexp = {0, 0.2, 0.39, 0.59, 0.79} and texp = {0.2, 1, 1.3, 1.7, 2}. write a subroutine called fitmouse to calculate the constants k1 and k2 by performing a polynomial least square fit to t = k1 + k2θ using experimental data given as two row arrays. fitmouse should except experimental datasets of any size.

Coiled springs ought to be very strong and stiff. si3n4 is a strong, stiff material. would you select this material for a spring? explain.

Afluid flows with a velocity field given by v=(x/t)i.. determine the local and convective accelerations when x=3 and t=1.

Ajournal bearing has a journal diameter of 3.250 in with a unilateral tolerance of 20.003 in. the bushing bore has a diameter of 3.256 in and a unilateral tolerance of 0.004 in. the bushing is 2.8 in long and supports a 700-lbf load. the journal speed is 900 rev/min. find the minimum oil film thickness and the maximum film pressure for both sae 20 and sae 20w-30 lubricants, for the tightest assembly if the operating film temperature is 160°f. a computer code is appropriate for solving this problem.