1. Determine the number of significant figures in the following measurements: 13,465.m=
1,065 cm=
0.0045 g =
23,000 L=
0.0302 S=
160 kg =
1,030 mL =
1.500 gr
7,685 m=
3,054,000 L=

Abug is 12 cm from the center of a turntable that is rotating with a frequency of 45 rev/min . what minimum coefficient friction is required so that the bug stays on the turntable?

Aparticle moves in the xy plane with constant acceleration. at time zero, the particle is at x = 6 m, y = 8.5 m, and has velocity ~vo = (9 m/s) ˆı + (−2.5 m/s) ˆ . the acceleration is given by ~a = (4.5 m/s 2 ) ˆı + (3 m/s 2 ) ˆ . what is the x component of velocity after 3.5 s? answer in units of m/s.

Which compound is held together by the electrostatic force between two ions? a. co2 b. cci4 c. h2s d. mgf2