Obtain the speed of the airplane relative to the air
After flying for 15 min in a wind blowing 42 km/h at an angle of 28° south of east, an airplane pilot is over a town that is 56 km due north of the starting point. What is the speed of the airplane relative to the air?
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What is the direction of the velocity of ship A relative to B? After what time will the ships be 155 nautical miles apart?
To obtain maximum magnification and an image that can be seen clearly by a normal eye, where should the object be placed?
Cyanides are toxic molecules featuring C-C-N bonds. Isocyanides are an unstable group of molecules where the order of bonding has changed to C-N-C. Under normal conditions, isocyanides will convert to cyanides.
1. For a population that is normally distributed with a mean of 100 and standard deviation of 10, what value would separate the smallest 20% of values from the next larger 80% of values?
A sol. of unknown Calcium concentration is titrated using EDTA. The EDTA is first standardized against a primary standard Zinc sol. prepared by dissolving 0.4088g of Zn in 1.000L of sol.
As a system increases in volume, it absorbs 52.5 J of energy in the form of heat from the surroundings. The piston is working against a pressure of 0.500 atm. The final volume of the system is 58.0 L.
What are the wall temperatures at that location and at the 10. 3 ft location? Calculate the arithmetic-mean temperature difference and the log-mean temperature difference for the heated section.
The nonconservative wind and lift forces take the balloon up, doing +9.70 x 104 J of work on the balloon in the process. At what height above the surface of the earth does the balloon have a speed of 7.30 m/s?
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