What is the mass of air in a room of dimensions `3mxx4mxx5m`, when the density of air is 1.3 kg `m^(-3)`?

What is the maximum possible sound level in dB of sound waves in air? Given that density of air is 1.3(kg)/(m^3) , v=332(m)/(s) and atmospheric pressure P=1.01xx10^5(N)/(m^2) .

Air streams horizontally past an air plane. The speed over the top surface is 60 m/s, and that under the bottom surface is 45 m/s. The density of air is 1.293 kg/ m^(3) , then the difference in pressure

Find thhe mass of 1 m^(3) of gold in kg when density of gold is 19 g cm^(-3) .

By using (i) Newton's formula and (ii) Laplace's formula, calculate the speed of sound in air at standard pressure and temperature. The density of air is 1.293 kg//m^(3) . gamma = 1.4 for air.

A room of legnth, breadth are and height 6mxx5mxx4m respectively. If the density of air is 1.2kg m^(3) , then mass of air in the room is

Given the density of air is 1.29 kg m^(-3) . Then, the relative density of air is ________.

What is the mass of 5m^(3) of cement of density 3000 kg //m^(3) ?

Find the mass of 1m^(3) of gold in kg when density of gold is 19 gcm^(-3)