Three ping-pong balls are stored in a cylinder. The cylinder has a diameter of 42 millimeters (mm) and a height of 125
mm. Each ping-pong ball has a diameter of 40
mm. The space within the cylinder, in cubic millimeters, not occupied by ping-pong balls is kπ
cubic millimeters. What is the value of k
?

answer is because 4×10=40

and 98×4= is 392

40,392

the above table 1 will calculate the population size (n) after a certain length of time (t). all you need to do is plug in the initial population number (no), the growth rate (r) and the length of time (t). the constant (e) is already entered into the equation. it stands for the base of the natural logarithms (approximately 2.71828). growth rate (r) and time (t) must be expressed in the same unit of time, such as years, days, hours or minutes. for humans, population growth rate is based on one year. if a population of people grew from 1000 to 1040 in one year, then the percent increase or annual growth rate is 40/1000 x 100 = 4 percent.

step-by-step explanation:

answer: 1.06 km per sec

step-by-step explanation:

39.6 m=63.72 km

60 min in an hour so 63.72/60=1.06