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Thanks for the help. You have been a great help. You cleared it all up.
a sinusoidal wave is described by y= (0.30)sin(0.20x-40t) what is the wave speed?
Anyone got any clues on how to solve this????
a room measures 3 m by 4.5 m by 6 m. The heating and air conditioning ducts to and from the room are round with a diameter of .30 m, and the air in the room has to be exchanged every 12 minutes. What is the necessary flow speed in the duct? Assuming air density is constant.
I think the r is supposed to be R if that makes any difference.
the problem is i'm lost
a arrow is fired with a velocity of 45 m/s at an angle of 50 degrees. what is the height of the arrow 150 meters away.
Need help with this stuff.
A house has well insulated walls. It contains a volume of 100 cm3 of air at 300 K. Calculate the energy required to increase the Temperature of this diatomic gas by 2 deg C. Assume it is heating at a constant pressure and use Cp=7R/2
I know that 2deg C is 275.15 kelvin
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