Polar molecules have trouble passing through the nonpolar part of the phospholipid bilayer. Ions require ion channels and is not as easy as those that simply just diffuse through the membrane. Ion channels might require energy, too... Not glucose because those are larger molecules.
Overtime is the amount of time someone works beyond normal working hours. Normal hours may be determined in several ways: 1  by custom (what is considered healthy or reasonable by society), 2  by practices of a given trade or profession, 3  by legislation,hus, an employee might work 48 hours in one week, and 32 hours the next week (assuming over 40 hours is overtime), and be paid an extra amount equivalent to 4 hours work (8 multiplied by 0.5).
Federal law requires that employees who are not exempt receive overtime pay for any time worked beyond forty hours in any one workweek. The rate of overtime pay is one and one-half times the employee's regular rate of pay, and must be paid in wages, not in goods or time off. A workweek is defined as one period of 168 hours, or seven consecutive twenty-four hour periods.