Calculate the reverberation time for an auditorium measuring `30mxx15mxx6m`. Sound absorption coefficients: for walls = 0.03, for ceiling `= 0.36`, for floor = 0.26.

How many 6 m cubes can be cut from a cuboid measuring 36 m xx 15 m xx 8 m ?

The number of 6 m cubes can be cut from a cuboid measuring 36 m xx 15 m xx 8 m is equal to

Identify the terms,their coefficients for each of the following expressions: 0.3 a-0.6 ab + 0.5 ab

The reflection coefficient and absorption coefficient of a body are 0.3 and 0.2 respectively. The percentage of radiation transmitted

Solve the following. 0.3 xx 6

An auditorium has volume of 10^5 m^3 and surface area of absorption 2xx10^4 m^2 . Its average absorption coefficient is 0.2. The reverberation time of the auditorium is second is

0.2 xx 0.3 = 0.6

A is a 100kg block, and B is a 200kg block. As shown in figure the block A is attached to a string tied to a wall. The coefficient of friction between A and B is 0.2 and the coefficient of fricition between B and floor is 0.3. Then calculate the minimum force required to move the block B. (take g=10m//s^(2) ).