Agrocery shopper tosses a(n) 8.9 kg bag of
rice into a stationary 18.4 kg grocery cart.
the bag hits the cart with a horizontal speed
of 5.7 m/s toward the front of the cart.
what is the final speed of the cart and bag?
answer in units of m/s.

With i really need the correct answer!

Which statements describe the movement of ocean currents around the globe? check all that apply. strong winds force warm water to sink to the ocean floor. the coriolis effect causes warm and cold water to mix. cool dense water sinks to the ocean floor. warm water replaces cool surface water. wind blowing parallel to the shore causes upwelling of cool water.

2kg of refrigerant 134a undergoes a polytropic process in a piston-cylinder assembly from an initial state of saturated vapor at 2 bar to a final state of 12 bar, 80 degree c. a)determine the work for the process in kj. b)sketch the process on a p-v diagram.