Student diffraction 1 23 in studying quantum mechanics, we find that all waves have object-like qualities and all objects have wave-like qualities. that technically means that all objects must obey the heisenberg uncertainy principle. let's assume the object is a 69 kg physics student and she moves through a 0.71 m wide door. we know that as she moves through the door, she must be somewhere inside its frame. 1) what is the uncertainty in her velocity? avstudnet m/sec submit 2) so it looks like we really won't care about the quantum mechanical effects involved unless we're worried about very, very small numbers. another way of looking at the fact that all objects have wave-like properties is diffraction. waves diffract as they move through a small opening and technically quantum mechanics means that all objects should diffract like a wave when going through a l'slitl". again, let's assume the object is our 69 kg physics student and she moves through the l'slit\" of a 0.71 m wide door. we know that the diffraction of a wave first becomes significant when the width of the aperture is comparable to the wavelength of the waves being diffracted. at what speed should the student be moving in order to have signficant diffraction as she enters the door? ystudnet m/sec submit 3) lets assume she lentersl" the room by moving 1 meter from the outside of the door to inside. at this speed, how long would it take for the student to enter to room?
Answers: 3
Physics, 22.06.2019 11:00, sudotoxic
Engineers find a new metal that is stronger than steel but much lighter. this material is also significantly cheaper than what is currently used for most aircraft, available in large quantities, and easy to manufacture. the engineers are excited because this new material will lower the costs of buying and operating airplanes for companies. what is probably the best step for the engineers to make next?
Answers: 2
Physics, 22.06.2019 15:00, ttorres013
Consider a uniformly charged ring in the xy plane, centered at the origin. the ring has radius a and positive charge qdistributed evenly along its circumference. a)what is the direction of the electric field at any point on the z axis? . b)what is the magnitude of the electric field along the positive z axis? use k in your answer, where k=14πϵ0. d)the ball will oscillate along the z axis between z=d and z=−d in simple harmonic motion. what will be the angular frequency ω of these oscillations? use the approximation d≪a to simplify your calculation; that is, assume that d2+a2≈a2. express your answer in terms of given charges, dimensions, and constants
Answers: 2
Student diffraction 1 23 in studying quantum mechanics, we find that all waves have object-like qual...
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