Speed of the airplane relative to the air related problem
After flying for 13 min in a wind blowing 44 km/h at an angle of 18° south of east, an airplane pilot is over a town that is 52 km due north of the starting point. What is the speed of the airplane relative to the air, in km/h?
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An acid with a pKa of 8.0 is present in a solution with a pH of 6.0. What is the ratio of the protonated to the deprotonated form of the acid?
Calculate the change in the specific enthalpy of the flow, and the temperature and density at State 2. What was the necessary area change of the diffuser?
The rms voltage across a 0.020 μF capacitor is 2.0 V at a frequency of 56 Hz. A) What is the rms current through the capacitor? Answer in μA.
Calculate the average rate of decomposition reaction if theconcentration of NOCl2 is 0.0364 M at t = 0.245 minutes and 0.0107M at t = 3.432 minutes. Express the answer in M/s. [Hint: convertthe time to seconds.]
A 390-m-wide river has a uniform flow speed of 2.0 m/s through a jungle and toward the east. An explorer wishes to leave a small clearing on the south bank and cross the river in a powerboat that moves at a constant speed of 8.0 m/s with respect t
If the gravitational potential energy U of the earth-rock system is 0 at the bottom of the will, what is the value of U just before the slide, how much energy is transferred to the thermal energy during the slide, what is the kinetic energy of the
A 1.5 kg mass is shot straight up with an initial speed of 3 m/s. What is the kinetic energy of the mass when it is launched, how much work does the gravitational force do on the mass during its accent, what is the potential energy during accent,
Heat is transferred to the H2O until the volume doubles. A) Deterimine the final temperature B) Calculate the sign and magnitude of the work done and the heat transferred in this process.
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