Find the approximate value of the circumference of a circle with the given radius. use π = 3.14. round your results to one more decimal than in the given radius.

6ft.
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The volume of a gas is halved during an adiabatic compression that increases the pressure by a factor of 2.5. what is the specific heat ratio? show the math steps .

Quantum mechanics applies to subatomic, atomic, nanometer-size, and micrometer-size systems. nanometer, micrometer, and kilometer-size systems. atomic, nanometer-size, and micrometer-size systems. subatomic, atomic, and nanometer-size systems.

What is the average speed of a car that travels 40mph for 1 hour and 60 mph in another hour will mark brainliest