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1. According to the uncertainty principle, can a particle having a kinetic energy of exactly zero be con?ned somewhere in a box of length L? Explain.
2. What is similar about the conjugate variable pairs (px, x), (E, t), (L, (J), and (I, w)?
3. What are the dimensions of the wave function Ψ (x, t) that describes matter waves? Give your reasoning.
4. Soon after their discovery, Davisson and Germer were using their experimental technique to describe new crystal structures of nickel. Do you think they were justi?ed? Explain how you think their results allowed them to make such statements.
Decide the R value for a wall constructed as follows: The outside of the house consists of lapped wood shingles placed over 0.50 in. thick sheathing, over 2.2 in. of cellulose fibber, over 0.50 in. of dry wall.
Consider a charged metallic spherical shell or radius a = 1.75 cm. Calculat the potential on the surface of the shell
A block is hung by a string from the inside roof of a van. When thevan goes straight ahead at a speed of 20 m/s, the block hangsvertically down.
an object is thrown from the top of a 45m building with an initial velocity of 20 ms straight upwards. the ball misses
A coil with magnetic dipole moment 1.5 A-m^2 is rotated initally with its magnetic moment parallel to a uniform magnetic field of 0.4T. what is the change in potential energy of the coil
A flywheel with radius 0.75 m has an initial angular velocity of 30 rad/s. What is the angular acceleration of the flywheel
A force of 1 Newton is the only horizontal force exerted on a block, and the horizontal acceleration of the block is measured. Obtain what can you conclude about the masses of the blocks
Two 2.50-cm-diameter disks spaced 1.70mm apart form a parallel-plate capacitor. The electric field between the disks is 5.00×105V/m. What is the voltage across the capacitor
a converging lens with a focal length of 15 cm is used to form an image on a screen that is 1.8 m behind the lens. at
In a proton accelerator used in elementary particle physics experiments, the trajectories of protons are controlled by bending magnets that produce a magnetic field of 3.60T. What is the magnetic-field energy in a 130 cm^3 volume of space where B=..
A plane flies at 1.75 times the speed of sound. Its sonic boom reaches a man on the ground 1.00 min after the plane passes directly overhead
air at 300 k and 100 kpa flows into a hair drier having electrical work input heating coil and fan motor of 1500 w.
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