HELP ASAP, TYSM By how many times must the distance from a point source be increased to reduce the sound intensity by 1/4?
Select one:
a. 1/4
b. 4
c. 1/2
d. 2

Your target variable is δf, the magnitude of the difference in frequency between the waves emitted from the sonar device and the waves received by the device after reflecting off the whale. write an expression for δf in terms of the relevant frequencies using the subscript notation introduced above.

Agas initially at p1 = 1 bar and occupying a volume of 0.5 liter is compressed within a piston–cylinder assembly to a final pressure p2 = 4 bar. (a) if the relationship between pressure and volume during the compression is pv = constant, determine the volume, in liters, at a pressure of 3 bar. (b) repeat for a linear pressure–volume relationship between the same end states. reference

What is the temperature in degrees celsius of a substance with a tempature of 49k