How does the intensity of a sound wave change if the distance from the source is increased by a factor of 3?
A. The intensity decreases by a factor of 9.
B. The intensity decreases by a factor of 3.
C. The intensity increases by a factor of 9.
D. The intensity increases by a factor of 3.

The a metal retainer that keeps the rolling elements evenly spaced. n a. seal n b. separator n c. bearing n d outer race

Question 7 [2 marks] in the circuit below, the electromotive force generated by the battery is e = 6.0 v, and the resistances are r1 = r4 = 1.0 q, r2 = r3 =2.0 q. r. the power delivered by the battery to the circuit is closest to a. 6 w в. 12 w с. 15 w d. 18 w e. 20 w final exam autumn 2014 page 5 of 9 68037 physical modelling faculty of science [2 mark] question 8 with reference to question 7, the current through resistor r2 is closest to a. 1 a в. 2 а c. 3 a d. 4 a e. 6 a

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