The variation in the pressure of helium gas, measured from its equilibrium value, is given by δp = 2.9 × 10−5 cos (6.20x − 3 000t), where x and t have units m and s, and δp is measured in n/m2. determine the wavelength (in m) of the wave.

The wavelength of this wave is 1.01 meters.

Explanation:

The variation in the pressure of helium gas, measured from its equilibrium value, is given by :

..............(1)

The general equation is given by :

...........(2)

On comparing equation (1) and (2) :

Since,

So, the wavelength of this wave is 1.01 meters. Hence, this is the required solution.

answer would be letter choice (a),   a ball resting on a shelf. would be another example of potential energy   >   stored energy > not moving.

a ball spinning on a finger   >   kinetic energy > moving energy

a ball rolling on the ground   >   kinetic energy   > moving energy

a   ball flying through the air   > kinetic energy   >   moving energy

hope that                                         : )

graph question answered .. you think better when you are relaxed and happy