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Object O1 is 16.3 cm to the left of a converging lens with a 11.7-cm focal length. A second lens is positioned 10.0 cm to the right of the first lens and is observed to form a virtual image at the position of the original object O1.
(a) What is the focal length of the second lens?
(b) What is the overall magnification of this system?
A cockroach of mass m lies on the rim of a uniform disk of mass 7.00 m that can rotate freely about its center like the merry-go-round. At first the cockroach and disk rotate together with an angular velocity of 0.220 rad/s. Then the cockroach walks ..
A 200 gram block, attached to the end of an ideal spring (horizontal) with force constant k = 70 N/m, What is the total mechanical energy of the block
What temperature change would reason a 0.20 % enhance in the volume of a quantity of water that was at first at 20 ^circ {rm C}.
A photographic image of a building is 0.0920 m high. The image was made with a lens with a focal length of 55.0 mm. determine the height of the building.
If the system is stopped, how much hanging mass would be required to bring the rotating mass to the same position.
A 23.2-mW laser beam of diameter 2.18 mm is reflected at normal incidence by a perfectly reflecting mirror. Calculate the radiation pressure on the mirror
A playground merry-go-round has a disk-shaped platform that rotates with negligible friction about a vertical axis. determine how fast will the disk be turning
An ideal gas at 20 C consists of 2.2 X 10^{22} atoms. 4.3 J of thermal energy are removed from the gas. What the new temperature in C.
The sound level 23 m from a loudspeaker is 65 dB. What is the rate at which sound energy is produced by the loudspeaker
a 70kg person stands on a diving board 4m long. the boards mass is 25kg and is bolted to two supports. calculate the force on the board at each of the supports
Given that the rotational constant of HF is 20.5cm-1, calculate the bond length of HF molecule
A generator rotates at 87Hz in a magnetic field of 9.0×10?2T . It has 600 turns and produces an rms voltage of 180V, find the area of each turn of the coil
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