The tensile strength data for for two polymer samples are given below:

mn(g/mol) uts(mpa)
40,000 87
60,000 133
8 156
1 170

estimate the tensile strength
a) at mn of 76,000 g/mol and
b) mn of 129,000 g/mol.
can you use this method to determine the strength at mn of 400,000 g/mol? if not, why not?

What difference(s) did you notice using a pneumatic circuit over hydraulic circuit.explain why the pneumatic piston stumbles when it hits an obstacle.

An ideal otto cycle with air as the working fluid has a compression ratio of 8. the minimum and maximum temperatures in the cycle are 300 k and 1340 k. use constant specific heats at room temperature to determine (a) the amount of heat transferred to the air during the heat- addition kj/kg, (b) the thermal efficiency, and (c) the thermal efficiency of a carnot cycle ope limits. process, in rating between the same temperature

Acertain flow of air (at stp) has a velocity distribution given by v i (in ft/s). if this flow is going through a 4 ft square area in the yz-plane (centered at the origin), what is the mass flow rate (in lbm/s)?