Adramatic theater has three seating sections, and it charges the following prices for tickets in each section: section a seats cost $20 each, section b seats cost $15 each, and section c seats cost $10 each. the theater has 300 seats in section a, 500 seats in section b, and 200 seats in section c. design a program that asks for the number of tickets sold in each section and then displays the amount of income generated from ticket sales. the program should validate the numbers that are entered for each section

If a particle moves along a path such that r : (3 sin t) m and ? : 2t rad, where t is in seconds. what is the particle's acceleration in m/s in 4 seconds? a)- 16.43 b)- 16.29 c)- 15.21 d)- 13.79

Along 8-cm diameter steam pipe whose external surface temperature is 900c connects two buildings. the pipe is exposed to ambient air at 70c with a wind speed of 50 km/hr blowing across the pipe. determine the heat loss from the pipe per unit length. (b) air at 500c enters a section of a rectangular duct (15 cm x 20 cm) at an average velocity of 7 m/s. if the walls of the duct are maintained at 100c. a) the length of the tube for an exit temperature of the air to be 40 0c. b)the rate of heat transfer from the air. c) the fan power needed to overcome the pressure drop in this section of the duct.

How to increase the thermal officiency of an ideal simple rankino cycle? among these methods, which one is the best and why?