7. Three students traveled from Charlotte, NC to Anderson, SC. Ollie traveled by bus at 68mph south. Aggie traveled by train at 45 km/hour. Pete
flew at 310 mph. Which of the students represents a velocity? *
A. Ollie; He was on the ground and traveled in the units of mph.
B. Aggie; She traveled in units that were metric.
C. Pete: He flew and got there the fastest.
D. Ollie; It includes a direction.

Inside of a windmill or a dam is a that is used to transform one type of energy into electrical energy. a. motor b. generator c. transformer d. power pack

4r-134a enters the condenser of a residential heat pump at 800 kpa and 50°c at a rate of 0.022 kg/s and leaves at 750 kpa subcooled by 3°c. the refrigerant enters the compressor at 200 kpa superheated by 4°c determine (a) the isentropic efficiency of the compressor, (b) the rate of heat supplied to the heated room, and (c) the cop of the heat pump. also, determine (d) the cop and rate of heat supplied to the heated room if this heat pump operated on the ideal vapor-compression cycle between the pressure limits of 200 and 800 kpa. (0.757, 4.37 kw, 5.12, 6.18, 3.91 kw)

Which of the the following are examples of projectile motion of both projectile motion and two dimensional motion