Please describe in terms of molecular motion and inter-chain attractive forces, the motion of polymer chains of a viscous polymer film as it is cooled at a constant rate as the sample moves through three temperature regimes:

a. Above Tg

b. Near or at Tg

c. Below Tg

Consider this opinion: "Interest rates have been generally declining for the past 30 years, and are near historical lows in the U.S. Therefore, there is nowhere for interest rates to go but up, which means you'd have to be nuts to invest in bonds!" What do you think?

A basketball player, standing near the basket to grab a rebound, jumps 66.9 cm vertically. How much time does the player spend in the top 14.2 cm of his jump?How much time does the player spend in the bottom 14.2 cm of the jump?

A basketball player, standing near the basket to grab a rebound, jumps 69.1 cm vertically. How much time does the player spend in the top 15.0 cm of his jump? How much time does the player spend in the bottom 15.0 cm of the jump?

A basketball player, standing near the basket to grab a rebound, jumps 68.6 cm vertically. How much time does the player spend in the top 14.4 cm of his jump? How much time does the player spend in the bottom 14.4 cm of the jump?

A basketball player, standing near the basket to grab a rebound, jumps 75.3 cm vertically. How much time does the player spewnd in the top 14.6 cm of his jump? How much time does the player spend in the bottom 14.6 cm of the jump?

Ocean net primary production is highest in

A. near shore areas (continental shelf) B. open ocean (pelagic zone) C. deep ocean (hydrothermal vents) D. aphotic zone (zone below where light can easily reach) E. beaches

The electric field near Earth's surface points downward and has a magnitude of approximately 104 N/C. What is the force

(F_e) on an electron due to this electric field?