Part A of the cell membrane is composed of which of the following? A. Proteins attached to the heads of the phospholipid molecules

B. Both the heads and the tails of the phospholipid molecules, arranged randomly

C. The hydrophilic heads of the phospholipid molecules

D. The hydrophobic tails of the phospholipid molecules

According to social exchange theory, altruistic behaviors benefit the individual who performs them. t/f

Explain the consequences of this addiction to the brain tissue

Amachinist turns the power on to a grinding wheel, at rest, at time t = 0 s. the wheel accelerates uniformly for 10 s and reaches the operating angular velocity of 96 rad/s. the wheel is run at that angular velocity for 40 s and then power is shut off. the wheel slows down uniformly at 1.5 rad/s2 until the wheel stops. in this situation, the time interval of deceleration is closest to: