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A 31cm focal length converging lens is 21cm behind a diverginglens. Parallel light stikes the diverging lens. After passing through the converging lens, the light is againparallel. What is the focal length of the diverging lens? (hint: first draw a ray diagram)
In a series R-L-C circuit, the phase angle is 40.5?, with the source voltage leading the current, Find the reactance of the inductor
Scientists plan to release a space probe that will enter the atmosphere of a gaseous planet. What is the approximate temperature at this altitude
Three beads are placed along a thin rod. The first bead has a mass m1=28g placed at a distance d1= 0.7 cm from the left of the rod. Calculate the numeric value of location of the center of mass relative to the middle bead in cm
A 25.0-g object moving to the right at 16.0 cm/s overtakes and collides elastically with a 9.0-g object moving in the same direction at 15.0 cm/s
a 1.0 kg wheel of radius 0.5 m is rotating at a rate of 40 rad/s about an axis through its center of mass. through what angle did the wheel turn while it is being stopped
A uniform 1200N beam that is 3.50 m long is suspended horizontally by two vertical wires at its ends. what will be the initial angular acceleration of the system
A 37.0-kg child swings in a swing supported by two chains, each 3.06 m long. The tension in each chain at the lowest point is 436 N. Find the child's speed at the lowest point
Calculate the molar Sakur-Tetrode entropy of gaseous argon at 25 C and atmospheric pressure
A student hits the cork sharply with her fist and the bottom of the bottle breaks. The student's fist has a mass of m = 0.480kg and moves downward at a speed of vi = 5.00m/s. What is the force that the fist exerts on the top of the bottle
A boat is tied to a dock by four ropes. Two ropes, with a tension of 55 N each, are at right angles to the dock. What is the magnitude of the sum of these forces
A 150-kg (including all the contents) rocket has an engine that produces a constant vertical force (the thrust) of 1680 N, Find the acceleration of the rocket
A hydrogen atom is in its second excited state, n=3. Find the total energy of the atom
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