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A converging (lens f=+12cm) in contact with a diverging lens gives a combined focal length of +36 cm. calculate the focal length of the diverging lens.
What is the rms speed of the molecules in low-density hydrogen gas at 0 ^circ {rm C}? (The mass of a hydrogen molecule, rm{H_2} , is 3.32×10-27 kg ).
A 35 g bullet moving at 475 m/s strikes a 4.20 kg bag of flour that is on ice, at rest. The bullet passes through the bag, leaving at 270 m/s. How fast is the bag moving when the bullet exits.
A parallel-plate capacitor is constructed using a dielectric material whose dielectric constant is 2.70, Find the minimum area of the capacitor plates
Coherent light with wavelength 601nm passes through two very narrow slits, and the interference pattern is observed on a screen a distance of 3.00 m from the slits, For what wavelength of light will the first-order dark fringe
A fisherman reels in 12 of line while landing a fish, using the constant forward pull of 35. How much work does the tension in the line do on fish.
In a darkened room we place a lighted tungsten bulb in a box that has one end covered with tinfoil. If we make a pinhole in the tinfoil, an image of filament appears on a screen facing the tinfoil.
Four or five gram blocks of metal are sitting out in the sun and absorb the same amount of heat energy. Use the following specific heat capacity data to resolve which block will increase its temperature the most.
A 1500 kg car carrying four 87kg people travels over a rough "washboard" dirt road with corrugations 4.40 m apart which causes the car to bounce on its spring suspension. The car bounces with maximum amplitude while its speed is 19km/h. The car now s..
Find out separation between the two sources
A 10 ohm resistor is in series with a 1 and 5 ohm resistor parallel combination. Calculate the total current running through the wire
What is the energy density. Find out the lowest frequency that permits standing waves in both strings with a node at the junction. The standing wave pattern in each string may have a different number of loops.
A star lying 35pc from the Sun has proper motion of 0.2"/yr. calculate the magnitude of its three-dimensional velocity relative to the Sun
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