A horse travels 1200 meters to the right in 60 seconds. What was its velocity? a. 72,000 m/s
b. 20 m/s
c. 0.05 m/s
d. 1260 m/s

According to newtons universal law of gravitation, which would change the parh of the ball so it traces out widest curved path possible?

An insulated 40 ft^3 rigid tank contains air at 50 psia and 120°f. a valve connected to the tank is now opened, and air is allowed to escape until the pressure inside drops to 25 psia. the air temperature during this process is kept constant by an electric resistance heater placed in the tank. determine the electrical work done during this process.

6–43 a food department is kept at 2128c by a refrigerator in an environment at 308c. the total heat gain to the food department is estimated to be 3300 kj/h and the heat rejection in the condenser is 4800 kj/h. determine the power input to the compressor, in kw and the cop of the refrigerator.