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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 rifle with a barrel length of 59cm fires a 10g bullet with a horizontal speed of 440m/s. How long does it take the bullet to come to rest after entering the wood
An 80.7-kg jogger is heading due east at a speed of 1.950 m/s. A 53.60 kg jogger is heading 33.1° north of east at a speed of 2.89m/s. compute the magnitude (enter first) and direction of the sum of momenta of the two joggers.
A model rocket fired vertically from the ground ascends with a vertical acceleration of 3.2 m/s2 for 5.2 s. What is the maximum altitude reached
A weather vane initially at rest has a moment of inertia of 0.125 kg · m2 about its axis of rotation. A 63.5 g piece of clay is thrown at the vane and sticks to it at a point 15.5 cm from the axis.
q1. one closed organ pipe has a length of 2.55 m.a what is frequency of the note played by this pipe?b when a second
A 10m long bar is attached by a hinge on a wall and held horizontal with a rope that makes an angle of 49 degrees from the bar. The bar is uniform and weighs 80N. How far from the hinge must a 10 kg mass be suspended for the tension in the rope to be..
a golf ball of mass 0.050 kg is at rest on the tee and has a velocity of 102 m/s immediately after being struckif the club, what is the average force exerted on the ball
a man stands on the roof of a 19.0 -tall building and throws a rock with a velocity of magnitude 24.0 at an angle of
A neutron is elastically scattered by carbon 12 nucleus. Before the collision the carbon nucleus was moving along the positive x-axis with a speed of V0. The neutron was moving at a speed of 5V0 in the negative y direction. You can take the mass rati..
question1a jet plane w a constant speed along a straight line at an angle 30 degrees above horizontal. the plane is
A point charge +6.7 uC is placed at the origin, and a second charge -3.6 uC is placed in the X - Y plane at (0.40 m , 0.55 m ). Where should a third charge be placed in the plane so that the net force acting on it is zero? Express your answers usi..
you decide to determine the depth of a tank of water using the suns light. with the sun overhead the tanks bottom is
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