Physics 198 Lecture 18: Lecture 18

  evaluate 2/3 times 18

The figure shows an acceleration-versus-force graph for three objects pulled by rubber bands.

The mass of Object 2 is 36 kg. What are the masses of Objects 1 and 3?

• 14 kg and 90 kg
• 72 kg and  18 kg
• 90 kg and  18 kg
• 14 kg and  72 kg

50. How many electrons are in bromine’s (atomic number 35) next toouter shell (n = 3)?
a. 2 b. 4 c. 8 d. 18