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An airplane flies in the positive direction along the x axis, through crosswinds that exert a force F = (a + bx)i^ + (c + dx)j^.
Find the work done by the wind on the plane, and by the plane on the wind, in traveling from the origin to position x.
A stationary motion detector sends sound waves of 0.7 MHztoward a truck approaching at a speed of 55.0 m/s. What is the frequency of the waves reflected back to the detector
A strip of copper 10 mm wide and 900µm thick is placed in a uniform magnetic field B vec of magnitude 0.30 T, with B vec perpendicular to the strip. A current i = 23 A is then sent during the strip such that a Hall potential dissimilarity V appears a..
The amplitude of a driven harmonic oscillator reaches a value of 25.0 F0/m at a resonant frequency of 400 Hz . What is the Q value of this system?
A stone is thrown horizontally from a vertical cliff 25m highand lands on the ground below, What was the original horizontal speed of the stone
We pass a laser beam through a double slit. On a screen 18.52 m away, we observe a series of bright lines which are 3.4 mm apart. What is the distance between the two slits
an object is moving along a straight line and the uncertainty in its position is 1 m.a find the minimum uncertainty in
A woman stands on a scale in a moving elevator. Her mass is 53.0 kg, and the combined mass of the elevator and scale is an additional 815 kg. What does the scale read during the acceleration
q1. an alpha particle helium nucleus is travelling along the positive x-axis at 1250 ms when it enters a cylindrical
a particle of mass m1 moving with a velocity u makes a head-on elastic collision with a particle of mass 2m initially
An asteroid has acquired a net negative charge of 128C from being bombarded by the solar wind over the years, How many more electrons does it have than protons
The heating element of a clothes dryer has a resistance of12.7 Ohms. A voltage of 240 V is connected across the heatingelement. What is the current in the heating element?
a 0.50shy-microf capacitor is being charged in a circuit. an ammeter in the circuit reads 1.5 a. what is the
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