(C) Two vectors A and B are such that A + B = C and A+ B2 = c?. Which of the following statements is correct?
(a) A is parallel to B
(c) A is perpendicular to B
(b) A is anti-parallel to B
(d) A and B are equal in magnitude.

Oxygen gas enters well-insulated diffuser at 25 lbf/in.2, 420r, with a velocity of 860 ft/s through a flow area of 1.6 in.^2. at the exit, the flow area is 12 times the inlet area, and the velocity is 19 ft/s. the potential energy change from inlet to exit is negligible. assuming ideal gas behavior for the oxygen and steady-state operation of the diffuser, determine the following: (a) the exit temperature, in r(b) the exit pressure, in lbf/in.^2 (c) the mass flow rate, in lb/s

*30 points + brainliest answer* gravity is pulling an object into the sun. the closer the object gets to the sun, the greater the gravitational force that acts on the object, increasing its acceleration. a line graph plotting the speed of the object against time would have which shape? a: straight line of positive slope b: curved line that slopes upward c: curved line that slopes downward d: straight line of negative slope

18. a 6.7 kg object moves with a velocity of 8 m/s. what's its kinetic energy? a. 26.8 j b. 167.5 j c. 53.6 j d. 214.4 j