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Late one night on a highway, a car speeds by you and fades into the distance. Under these conditions the pupils of your eyes have diameters of about 7.1 mm. The taillights of this car are separated by a distance of 1.4 m and emit red light (wavelength = 644 nm in vacuum). How far away from you is this car when its taillights appear to merge into a single spot of light because of the effects of diffraction?
Assuming that the pass was thrown at the optimal 45 ^circ angle, evaluate what was the speed at which the ball left the quarterback's hand?
At the same instant that a 2.0-kg ball is dropped from 50 m above Earth, a second ball, What is the velocity of the center-of-mass of the two-ball system 0.5 seconds after the balls are released
Light of wavelength 5.70 x 102nm passes through a slit of width 0.210 mm. Determine the width of the first-order bright fringe
A Brayton-cycle heat engine follows the cycle shown in the figure. The heat input from the burning fuel is 2.0 MJ per cycle. Determine the engine's thermal efficiency by explicitly
The amplitude of the voltage across an inductor can be greater than the amplitude of the generator emf in an RLC circuit. Consider an RLC circuit with Epeak = 50 V, R = 14, L = 1.05 H, and C = 1.12 µ F. Find out the amplitude of the voltage across th..
The density of water is 1000 kg/m3, while that of ice is 916.7 kg/m3. If a block of ice is placed in water, what volume fraction of the ice is below the surface
An LRC series circuit with R = 100 Omega, L = 56mH, and C =1.7 muF is powered by an ac voltage source of peak voltage V0 = 210 V, Determine the phase angle of the source voltage relative to the current
What minimum heat is needed to bring 138g water at 22°C to the boiling point and completely boil it away.
Use 9.81 for the magnitude of the acceleration due to gravity.
A fullback with a mass of 75 kg and a velocity of 4.0 m/s due west collides head-on with a defensive back with a mass of 88 kg and a velocity of 5 m/s due east. What is the initial momentum of each player
Suppose that a 1.00 cm3 box in the shape of a cube is perfectly evacuated, except for a single particle of mass 1.23 10-3 g. Find the temperature inside the box
First-order Bragg diffraction is observed at 23.0 degrees relative to the crystal surface, with spacing between atoms of 0.26nm, At what angle will second order be observed
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