A train is moving parallel and adjacent to a highway with a constant speed of 30 m/s. Initially a car is 50 m behind the train, traveling in the same direction as the train at 44 m/s and accelerating at 2 m/s2. What is the speed of the car just as it passes the train?

The frequencies refer to the sample data collected from a population of interest when performing a hypothesis test comparing two or more population proportions.

During the experiment if you could triple the breakaway magnetic force with all other quantities left unchanged, what is the new value for the critical velocity if it was v0 (initial velocity), initially? (b) now if you halved the radius with all other quantities left unchanged, what is the new critical velocity if it was v0 (initial velocity), initially? (c) if during the experiment, critical velocity quadrupled with all other quantities left unchanged, what is the new breakaway force if its magnitude was initially f0,?

How many neutrons does element x if it’s atomic number is 28 and its mass number is 87