7. Canora is 49.0 km straight north of Yorkton. Two cars leave Yorkton at the same time. One car travels at 125 km/hr (N) and the other car travels at 104 km/hr [N]. Assume
the road is clear and they use their cruise control the entire drive. Find the amount of
time (in seconds) the faster car beats the slower car by.

Achemistry student needs of 40ml diethylamine for an experiment. by consulting the crc handbook of chemistry and physics, the student discovers that the density of diethylamine is 0.7 . calculate the mass of diethylamine the student should weigh out. round your answer to significant digits.

In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j? 1. write the equation 2.list out your known variables 3.plug the numbers into the equations 4.solve 5.write your solution statement that includes initial energy and final

The law of the conservation of momentum says that the total momentum of any closed and isolated system cannot