Apoint source at the origin emits sound of frequency 175 hz uniformly in all directions. on the x-axis at x=100 m, the sound intensity is 1.40 * 10^-4 w/m^2 . 1. what is the power output of the source?
2. what is the intensity ( in si units ) on the x-axis at x=160m?
3. what is the intensity in decibels on the x-axis at x=160m? 4. a steady wind is blowing at 5.00 m/s in the positive x-direction. an observe on a bicycle at x=200 m is moving along the x-axis in the negative direction ( i. e., towards the source of sound ) at a speed of 12.0 m/s. what frequency of sound does the cyclist hear?

Distinguish between a transverse wave and a longitudinal wave.

An isolated conducting spherical shell carries a positive charge. part a which statement (or statements) about the electric field and the electric potential inside and outside the spherical shell is correct? which statement (or statements) about the electric field and the electric potential inside and outside the spherical shell is correct? electric potential inside the shell is constant and outside the shell is changing as 1/r2 both the electric potential and the electric field does change with r inside and outside the spherical shell electric potential inside and outside the shell is constant, but not zero electric potential inside the shell is constant and outside the shell is equal to zero electric field inside and outside the shell is constant (does not change with the position r), but is not equal to zero electric field inside and outside the shell is changing as 1/r (where r is the distance from the center of the sphere) electric field inside is equal to zero and outside the shell is constant, but not zero electric potential inside the shell is constant and outside the shell is changing as 1/r electric field inside and outside the shell is changing as 1/r2 electric field inside is equal to zero and outside the shell is changing as 1/r2 electric field inside and outside the shell is zero electric field inside is constant and outside the shell is changing as 1/r

Una carga puntual de 3 x 10-6 c se coloca a 12 cm de una segunda carga puntual de - 1,5 x 10-6 c. calcular la magnitud fuerza eléctrica entre las cargas