Friday
December 13, 2013

# Posts by Melissa

Total # Posts: 1,058

physics
A formula one car is moving at mach 0.16 when the temperature of the air is 20.0c. What is the speed of the car in kilometers per hour?

physics
A plane traveling at 260m/s has a speed of Match 0.80. What is the speed of sound in the air

physics
Assuming that the speed of sound at a certain altitude is 330m/s calculate the speed of an airplane that is traveling at match 4.2 ?

physics
Thank you

physics
The source of a wave generates 25 crests and 25 troughs in 5.0s, and the distance between two successive crests in that wave is 1.5 m . What is the speed of the waves

physics
The distance between the second and sixth crests in a wave is 75cm and one crest travels a distance of 25 cm in 3.0s . Find the frequency of the wave

physics
The second resonant length of an open air column is 48cm. Determine the first and third resonant lengths

physics
Could you please explain how you got that! The answer should be 20.0cm and I just don't understand

physics
What's the shortest air column , closed at one end, that will resonate at a frequency of 440.0Hz when the speed of sound is 352 m/s

physics
Thanks:)

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