Q1. An auditorium has dimensions 10.0 m 32.0 m 36.0 m. How many molecules of air fill the auditorium at 190.0°C and a pressure of 101 kPa (1.00 atm)?
Q2. A 10.0 mu F capacitor initially charged to 430.0 mu C is discharged through a 2.20 k Omega resistor. How long does it take to reduce the capacitor's charge to 5.00 mu C?
Q3. A farsighted man uses eyeglasses with a refractive power of 1.75 diopters. Wearing the glasses 0.02 m from his eyes, he is able to read books held no closer than 0.28 m from his eyes. He would like a prescription for contact lenses to serve the same purpose. What is the exact contact lens prescription, in diopters?