Like the polar bear, the walrus is a strong swimmer, although it does not have the same endurance. for short periods of time, a walrus can swim at an average speed of 9.7 m/s. how far would a walrus swim at this speed in 3.4 minutes?

Africtionless piston-cylinder contains 50 l of saturated liquid r-134a. the piston has a mass and an area resulting in an applied pressure of 500 kpa on the refrigerant. the refrigerant is now heated until its temperature rises to 70∘c. calculate the work (in kj) done during this process.

How is sound energy produced a. vibrating objects b. objects being heated c. temperature differences d. stationary objects

To a of 4 x hz is 1. 0. mm nm nm