A bag contains 10 red balls, 30 white balls, 20 black balls, and 15 yellow balls. If 2 balls are drawn, replacement being made after each drawing, find the probability that only one is red.
One basket contains 5 apples and 2 oranges and a second basket contains 4 apples and 3 oranges. If a fruit is taken from one of the two baskets at random, what is the probability that it is an orange?
high pressure steam enters a turbine with a velocity of 38.0 meters/sec and leaves the exhaust trunk with a velocity of 305 meters/sec. calculate the kinetic energy of the steam in KJ/kg of the steam in KJ/kg and N-m/kg at a. at the entrance to the turbine and b. the exhaust trunk
high pressure steam enters a turbine with a velocity of 125 ft/s and leaves the exhaust trunk of the turbine with a velocity of 1000 ft/s. calculate the kinetic energy in ft-lbf/lb and BTU/ lb at a. at the entrance to the turbine, and b. the exhaust trunk
a boiler feed pump takes water at an elevation of 10 feet above a chosen datum and pumps it into a boiler drum at elevation 30 feet. calculate the change in potential energy of the water from pump to boiler in: a. ft-lb/ lbm b. btu/ lb