Abubble, located 0.200 m beneath the surface in a glass of beer, rises to the top. the air pressure at the top is 1.01 10 5 pa. assume that the density of beer is the same as that of fresh water. if the temperature and number of moles of co2 in the bubble remain constant as the bubble rises, find the ratio of the bubble’s volume at the top to its volume at the bottom.

the ratio of the bubble’s volume at the top to its volume at the bottom is 1.019

Explanation:

given information

h = 0.2 m

= 1.01  x Pa

 =  + ρgh, ρ = 1000 kg/

 = 1.01 x Pa + (1000 x 9.8 x 0.2) = 1,0296 x Pa

 =  = Pa

thus,

/ = 1.019

the electric field is a “force field” around a charged object that illustrates the direction the electric force would push an imaginary 

when two balls of the different masses are dropped from equal height, they reach the ground at the same time .this is because they experience the same acceleration.

the acceleration is independent of mass.

thus when they are dropped they will always maintain the same velocity and travel the same distance (neglect air resistance of course) at the same time.