An aircraft performs a maneuver called an "aileron roll." During this maneuver, the plane turns like a screw as it maintains a straight flight path, which sets the wings in circular motion
If it takes it 35 s to complete the circle and the wingspan of the plane is 11 m, what is the acceleration of the wing tip?
A) 5.6 m/s2 B) 0.99 m/s2 C) 0.18 m/s2 D) 1.0 m/s2
C
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Subduction on the Earth is the process by which
A) dense material sank while lighter material rose to the surface during the early geological history B) molten lava oozes out between two tectonic plates that are slowly moving apart C) volcanic material flows from the deep interior to produce volcanic islands D) oceanic crust sinks below continental crust at a tectonic plate boundary
Write the equation of a wave, traveling along the +x axis with an amplitude of 0.02 m, a frequency of 440 Hz, and a speed of 330 m/sec
a. y = 0.02 sin [880p(x/330 - t)] b. y = 0.02 cos [880p x/330 - 440t] c. y = 0.02 sin [880p(x/330 + t)] d. y = 0.02 sin [2p(x/330 + 440t)] e. y = 0.02 cos [2p(x/330 + 440t)]
An object moves at a constant velocity of 12 m/s to the southwest for an interval of 30 s. Halfway through this interval, what is the magnitude of its instantaneous velocity?
a. It can be any value from 0 to 24 m/s. b. 12 m/s c. 6 m/s d. More information is needed. e. 24 m/s
A positively charged particle has a velocity in the negative z direction at point P. The magnetic force on the particle at this point is in the negative y direction. Which one of the following statements about the magnetic field at point P can be determined from this data?
a. Bx is positive. b. Bz is positive. c. By is negative. d. By is positive. e. Bx is negative.