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Question: An airplane is flying in a jet stream that is blowing at 45.0 m/s in a direction 28° south of east. Its direction of motion relative to the earth is 45° south of west, while its direction of travel relative to the air is 10° south of west.
(a) What is the airplane's speed relative to the air mass? Correct: Your answer is correct.
(b) What is the airplane's speed relative to the earth?
what is the cost of the electric energy equivalent to the energy in a Big Mac? (the cost of a Big Mac is $3.57)
A beam of light is emitted 8.2cm beneath the surface of a liquid and strikes the surface 7.2cm from the point directly above the source. what can you say about the index of refraction of the liquid
A series RLC circuit contains 4.2 Ω resistors, a 42 mH inductor and a 22 µF capacitor. Obtain what is the total impedance (Z) of the circuit
A boy in a wheelchair (total mass 45 kilogram) has speed 1.40 meter per second at the crest of a slope 2.20 meter high and 12.4 meter long. Obtain the work he did in pushing forward on his wheels during the downhill ride
how many turns should a solenoid of cross-sectional area 0.035 m2 and length 0.39 m have if its inductance is to be 48
Assume the average density of the universe is 0.1 of the critical density needed for closure. What is the average number of protons per cubic meter, assuming the universe is composed mostly of hydrogen?
The lob in tennis is an effective tactic when your opponent is near the net. It consists of lofting the ball over his head, forcing him to move quickly away from the net, With what minimum average speed must he move
A 13 cm radius air duct is used to replenish the air of a room 9.4 m ?4.5 m ?5.0 m every 10 min. How fast does air flow in the duct?
What particles are being accelerated in a particle accelerator and how are they being accelerated, what their target is, how the particles are detected and what sub-atomic particles have been discovered at the site.
Choose a any everyday kitchen item. How have advances in materials affected its design? What compromises did the engineers make to optimize functionality?
Write an equation for calculating horizontal range for any initial speed, cannon angle, and elevation difference between target and cannon. Explain how you arrived at your equation. What basic physics principles did you apply?
A fisherman's scale stretches 4.0cm when a 2.3kg fish hangs from it. What is the spring stiffness constant
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