A car on a freeway speeds up to get around another car. The car speeds up from 20 m/s to 35 m/s in 5 seconds. m/s
What is the car's initial speed?
What is the car's final speed?
m/s
How long did it take for the carto speed up?
seconds.

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.

The coefficient of friction is a number that represents the resistance to sliding between two in contact with one another.

4. a 75.0 g piece of ag metal is heated to and dropped into 50.0 g of water at the final temperature of the mixture is what is the specific heat capacity of silver? 5. a 465 g chunk of iron is removed from petrucci, ralph h.. general chemistry (p. 290). pearson education. kindle edition.