A30-g bullet is fired with a horizontal velocity of 450 m/s and becomes embedded in block b, which has a mass of 3 kg. after the impact, block b slides on 30-kg carrier c until it impacts the end of the carrier. knowing the impact between b and c is perfectly plastic and the coefficient of kinetic friction between b and c is 0.2, determine (a) the velocity of the bullet and b after the first impact, (b) the final velocity of the carrier.

The mass flow rate of the fluid remains constant in all steady flow process. a)- true b)- false

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.

Asteam is contained in a rigid tank with a volume of 1 m3. initially, the pressure and temperature are 7 bar and 500 oc, respectively. the temperature drops due to cooling process. determine: (1) the temperature at which condensation begins in °c, (2) the fraction of the total mass that has condensed when the pressure decreased to 0.5 bar. (3) the volume in m3 occupied by saturated liquid at the final state?