The time tM to the maximum height of an object of mass m launched from the the ground with initial velocity, V . The force of air resistance must be taken into account and it is proportional to the velocity of the object with proportionality constant k. (a) Find the dimensions of k.

The ideal gas model is valid if which of the following conditions is true? the gas density is low. the gas density is high. the temperature is low. the temperature is high. the gas density and the temperature are low. the gas density and the temperature are high. the gas density is high and the temperature is low. the gas density is low and the temperature is high.