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=

A6,600 kg train car moving at +2.0 m/s bumps into and locks together with one of mass 5,400kg moving at -3.0m/s. what is their final velocity? +0.50 m/s -1.0 m/s +2.5 m/s -0.25 m/s

If the speed of a particle triples ,by what factor does its kinetic energy increase?

Aspecimen of oil having an initial volume of 580cm^3 is subjected to a pressure increase of 4.0 mpa, and the volume is found to decrease by 0.40 cm^3. (a) what is the bulk modulus of the material? (b) what is the compressibility of the material?