New problem. Suppose we have two positively charged particles a distance of 2 m apart from each other. Particle 1 has a charge of 3 C and particle 2 has a charge of 1.3 x 10^3 C. What
amount of electrostatic force exists between these two particles? *
8.7 x 10^12 N
3.51 x 10^13 N
1.3 x 10^3 N

Taylor's experiment: 1. accurately measured the speed of light 2. locked together the phases of two light sources so that the interference pattern would not shift 3. showed that man's reaction time was much slower than the speed of light 4. showed that individual photons have wave characteristics

How many molecules are present in 3 mols of silicon dioxide (sio2)?

John throws .4 kg ball with velocity of 18 m/s. hits .2 kg bottle and bottle flies 25 m/s. how fast is ball traveling after hitting the bottle?