The Tower of Doom, at Entch Gardens in Denver, Colorado, lits 12 people 60 meters into the air The engineers assume the average person has a mass of 60 kg
A. How much rider weight does the ride lift into the air? (Neglect the weight of the cars.) (4
points)

Air initially at 0.75 bar, 1000 k, and occupying a volume of 0.12 m^3 undergoes two processes. process 1-2: the air is compressed isothermally until the volume is halved. process 2-3: the air undergoes a constant pressure process until the volume is halved again. assume ideal gas behavior. a) determine the mass of the air, in kg. b) the work and the heat transfer for each of the two processes, in kj. (100 kj = 1 bar . m^3)

If angle "a" is 25°, angle "b" is: a) equal to angle c b) less than angle c c) greater than angle c

Object a has a length of 3 cm, a width of 2 cm, and a height of 4 cm. object b is dropped into a graduated cylinder. it displaces 19 ml of water. the volume of object a is: a: greater than the volume of object b b: less than the volume of object b c: equal to the volume of object b