Viruses of mass M = 2 × 10−20 kg are lying on the floor at room temperature (about 20°C = 293 K). They are of course in thermal equilibrium with their surroundings. What is a typical height above the...

Viruses of mass M = 2 × 10−20 kg are lying on the floor at room temperature (about 20°C = 293 K). They are of course in

thermal equilibrium with their surroundings. What is a typical height above the floor for one of these viruses? That is, for

what value of y is Mgy ≈ kBT?