Aprojectile is fired with an initial velocity v0 = 100 m/s and a firing angle alpha = 30o. construct the proper loop to populate the arrays that store the values of x = t * v0 * cos(alpha) and y = t * v0 * sin(alpha) - (1/2) * g * t2 , where x and y are the horizontal and vertical coordinates of the projectile at any time t measured from the firing point, and t is the time in seconds.

Aheat pump using refrigerant-134a heats a house by using underground water at 8°c as the heat source. the house is losing heat at a rate of 60,000 kj/h. the refrigerant enters the compressor at 280 kpa and 0°c, and it leaves at 1 mpa and 60°c. the refrigerant exits the condenser at 30°c. determine: (a) the power input to the heat pump, (b) the rate of heat absorption from the water, and (c) the increase in electric power input if an electric resistance heater is used instead of a heat pump