In a vehicle with front disc brakes, the vehicle pulls to the left when braking. What causes this? A. Seized left brake caliper piston
B. Collapsed left brake line hose

Burgers vector is generally parallel to the dislocation line. a)-true b)-false

The higher the astm grain size number, the finer the gran is. a)-true b)-false

Ahe-xe mixture containing a 0.75 mole fraction of helium is used for cooling electronics in an avionics application. at a temperature of 300 k and atmospheric pressure, calculate the mass fraction of helium and the mass density, molar concentration and molecular weight of the mixture. if the cooling capacity is 10 l, what is the mass of the coolant?