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Airline passengers frequently observe the wingtips of their planes oscillating up and down with periods of the order of 1 sec and amplitudes of about 0.1 m.
(a) Prove that this is definitely not due to the zero-point motion of the wings by comparing the zero-point energy with the energy obtained from the quoted values plus an estimated mass for the wings.
(b) Calculate the order of magnitude of the quantum number n of the observed oscillation.
A large crate is pulled along a horizontal path at a constant speed by a cable that is inclined at an angle of 20° with respect to the horizontal. How far will the crate move in 10 seconds
What is the yield if Murphy's model is used instead? How about Seeds' model?
A proton accelerates from rest in a uniform electric field of 620 N/C. At some later time, its speed is 1.16 106 m/s. what is the magnitude of acceleration of the proton
Two periodic waves interfere somehow. Both waves have the same frequency and wavelength. what is the range of amplitue of the resulting wave
A tetrahedron contains a point charge Q = 65 nC. Find the electric flux through the surface of the tetrahedrom. Find the flux through each face of the tetrahedron
two capacitors c12.5mf and c25.0mf are connected in parallel. if a voltage of v120 volts is applied across the
A U-shaped tube is filled mostly with water, but some vegetable oil has been added to both sides of the U tube. Obtain the difference in fluid level between the two sides of the tube
The club was in contact with a ball, initially at rest, for about 0.0014 s. find the average force exerted on the ball by the club
Start with four identical solid spheres (A, B, C, and D) made of the same conducting material. Each is mounted on an insulated stand. What is the charge on each sphere after each action is completed? Justify
A gyroscope is precessing about a vertical axis. Describe what happens to the precession angular speed if the angular speed of the spinning flywheel is doubled. (All other variables remaining the same.)
Determine how strong is the electric field (in volts/meter) between two parallel plates 1.00 millimeter. apart if the potential difference between them is 310 Volt
A mass, m= 1.23kg is hanging from a string. The string is stretched 0.641m from its natural equlibrium position. If i lift the mass 0.36m and let it go, what will be its maximum velocity
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