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Two starships, the Enterprise and the Constitution, are approaching each other head-on from a great distance. The separation between them is decreasing at a rate of 713.0 km/s. The Enterprise sends a laser signal toward the Constitution. If the Constitution observes a wavelength ? = 712.2 nm, what wavelength was emitted by the Enterprise? Express your answer with four significant digits.
A car is driven 175km west and then 55km southwest. What is the displacement of the car from the point of origin (magnitude and direction).
A golf ball strikes a hard, smooth floor at an angle of 30.0?? and, as the drawing shows, rebounds at the same angle. What is the magnitude of the impulse applied to the golf ball by the floor
A two-slit pattern is viewed on a screen 1.06 m from the slits. compute the total width of the central bright fringe
A 5.43 kg block free to move on a horizontal, frictionless surface is attached to one end of a light horizontal spring. find the speed of the block at the equilibrium position of the spring
A 120 granite cube slides down a 45 frictionless ramp. At the bottom, just as it exits onto a horizontal table, it collides with a 210 steel cube at rest.
For a Nd:YAG laser there are four pump levels located at 1.00 eV, 1.24 eV, 2.40 eV, and 2.54 eV. What is shortest possible pump wavelength (in nanometers) that could be used to populate any of the excited energy levels
A parallel-plate air capacitor of area A=16.0cm2 and plate separation d=3.40mm is charged by a battery to a voltage 52.0V. how much additional charge will flow from the battery onto the positive plate
A tugboat pulls two barges with a force of 3000N. The water slows each of the boats with a force of 200N (3 total forces of 200N each). what is the accleration of the boats
An air-track glider is attached to a spring. The glider is pulled to the right and released from rest at t=0 s. What is the amplitude of the oscillation
A 2 kg car moving towards the right at 4 m/s collides head on with an 8 kg car moving towards the left at 2 m/s, determine the velocity of the combined bodies
A u-tube with a cross-sectional area of 1.00 cm^2 is open to the atmosphere at both ends. WAter is poured into the tube until the water rises part way along the straight sides, What is the density of the oil
Consider a series RLC circuit where R = 957 ? and C = 5.25 ?F. However, the inductance L of the inductor is unknown. What is the inductance of the inductor in millihenrys
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