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X-rays of wavelength 0.0983 nanometer are directed at an unknown crystal. The second diffraction maximum is recorded when the X-rays are directed at an angle of 23.7o relative to the crystal surface. Obtain the spacing between crystal planes?
A step-down transformer (turns ratio = 1:8) is used with an electric train to reduce the voltage from the wall receptacle to a value needed to operate the train. What is the current in the primary coil
An object of mass m is attached to a horizontal spring, stretched to a displacement A from equilibrium and released, undergoing harmonic oscillations on a frictionless surface with period T0. The experiment is then repeated with a mass of 4m. The sub..
Light strikes a surface at an angle of 47 degrees. The angleof refraction is measured to be 34 degrees. What is the index of refraction of the material
A star in a distant galaxy is located at a distance of 20 kpc from the center of that galaxy. What is the total mass of the dark matter in this galaxy
will true moment of inertia of the dumbell system be larger or smaller than I=2MR^2M suggests? if Rm where to double by how much would the moment of inertia change
A 5.9 g bullet leaves the muzzle of a rifle by a speed of 330 m/s. What force (assumed constant) is exerted on the bullet while it is traveling down the 0.81 m long barrel of the rifle?
8 lights are connected in parallel to a 110 V source by two long leads of total resistance 1.6 ohms. what fraction of the total power is wasted in the leads
An ideal gas is brought throught an isothermal compression process. what are the temperature T of the the gas and the final pressure Pt
A closed gas system initially has volume and temperature of 4360mL and 646.0C with the pressure unknown. what was the initial pressure in torr
A fox is chasing a bunny. The bunny is initially hopping east at 5 m/s when it first sees the fox. What was the bunny's average acceleration during this half-second interval
a 1.5 kg object initially at rest is raised to a height of 10 m by a force of 40 n. what is the velocity of the object
When a large star becomes a supernova, its core may be compressed so tightly that it becomes a neutron star, with a radius of 20 km (about the size of San Francisco). If a neutron star rotates once every second, (a) what is the speed of a particle..
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