There is a feature on the newer GM radios that the volume will change with the speed of the car and the noise generated, I believe there is a way to disable that function on the radio but you will have to look it up in your owners manual.
It would depend on what system is fitted
A greater volume of water would cause this.
Yes - an increase in contractility would lead to an increase in stroke volume. An increased stroke volume would cause an increased cardiac output.
Yes. When you squeeze the balloon, you cause the volume to decrease. Since density is determined by dividing mass by volume, a decrease in volume will cause an increase in denisty.
Yes
It depends on the capacity of the battery and the power used by the stereo. To roughly calculate the time, divide the amount of charge in the battery (amps hours) by the amount of current (amps) used by the stereo. If you don't know the current, divide the power of the stereo (watts) by 12. That would give you the current at max power output (max volume).
In French, "stereo" is masculine. So you would use "un stereo" when referring to it.
For the pressure to remain the same, the temperature would double if the volume also doubled.
A decrease in density would indicate a reduction in mass relative to the volume. If the mass decreases but the volume remains the same or increases, then the density would decrease.
The volume of the container is increased.
That would be where you connect anything with a STEREO AUDIO OUTPUT.
Depending on how high tech you would like your stereo system to be you can purchase one for $50 and up. To me a stereo system would be my ipod with speakers attached to it. It really depends on what type of stereo you are looking for.