Physics
A bomb explodes on the moon. You will hear its sound on earth after ________

20 minutes
3.7 hours
2 hours 20 minutes
You cannot hear the sound of explosion

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Physics
Analog synthesis refers to a technology based on

Representing data in terms of measurable physical quantities.
Placing brief digital recordings of live sounds under the control of a synthesizer keyboard.
Representing physical quantities as numbers.
Interfacing synthesizer equipment.

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