Find the speed of the plane in still air and speed of wind
An airplane flies into a headwind with an effective ground speed of 68 mi/h. On the return trip it flies with the tailwind and has an effective ground speed of 124 mi/h. find the speed p of the plane in still air, and the speed w of the wind.
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Find the amount of time it takes for the target mass (m = 1kg) to raise its temperature by 100K if the current of the beam is I = 20µA. Note that the specific heat of iron is c = 500J/kg K, and assume that all proton's energy is converted in
Calculate (a).the molar concentration of the ammonia solution and (b). convert to percent by mass concentration of ammonia (17.0 amu), given asolution density.
Show that this can be done two different ways and find the exact dimensions of the box in each case (note, one of your answers may have dimensions that will require you to approximate).
What is the work done on the gas if it is compressed at constant pressure to one-quarter its initial volume?
On the return trip it flies with the tailwind and has an effective ground speed of 124 mi/h. Find the speed p of the plane in still air, and the speed w of the wind.
Kucharel is a polymer that is prepared by heating the dimethylester derived from cyclohexane-1, 4-dicarboxylic acid with ehyleneglycol. What is the repeating unit in Kucharel?
Two workers hold a heavy pail. Its mass is unknown. One worker exerts a 220N force at 137 degrees from vertical. The other worker exerts a 170N force. What is the weight of the pail?
When the magnetic flux through a single loop of wire increases by 30 tm^2, an average current of 40A is induced in the wire. Assuming that the wire has a resistance of 2.5 Ohms a(a) over what period of time did the flux increase?
A Rolaids tablet contains calcium carbonate to neutralize stomach acid. If 44.55 mL of 0.448 M hydrochloric acid is required to neutralize one tablet, how many milligrams of calcium carbonate are in a rolaids tablet?
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