It is important to wear protective equipment in both practice and games.
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The necleus of an atom is made up of what subatomic particles?

An insulated 40 ft^3 rigid tank contains air at 50 psia and 120°f. a valve connected to the tank is now opened, and air is allowed to escape until the pressure inside drops to 25 psia. the air temperature during this process is kept constant by an electric resistance heater placed in the tank. determine the electrical work done during this process.

What is the name of the perceived change in a sound wave’s frequency due to motion between the observer and the sound source?