Understanding Conservation of Momentum
Quick
Check
ObjectA and Object B are both in motion when they collide with each other. They then continue in a new direction
unaffected by any other forces. This is a
system, and the momentum is
This
means that the sum of the momentums of A and B before the crash is
to the sum of the momentums of
A and B after the crash.

The random variable x is the number of occurrences of an event over an interval of ten minutes. it can be assumed that the probability of an occurrence is the same in any two-time periods of an equal length. it is known that the mean number of occurrences in ten minutes is 5.3. the appropriate probability distribution for the random variable

1mile equals approximately 1.6 kilometers. which best approximates the number of miles in 6 kilometers?

Solve the problem. a student earned grades of c, a, b, and a in four different courses. those courses had these corresponding numbers of credit hours: 4, 5, 1, and 5. the grading system assigns quality points to letter grades as follows: a = 4, b = 3, c = 2, d = 1, and f = 0. compute the grade point average (gpa) and round the result to two decimal places. 3.40 3.50 8.75 2.18