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An object 4.0 cm high is placed 20 cm to the left of aconverging lens with a focal length of + 8.0 cm. Adiverging lens with a focal length of – 12 cm is placed40 cm to the right of the converging lens.
a. Describe the location,nature and size of the intermediate image caused by the light rays passing through the converging lens.b. Describe the location, natureand size of the final image after the light rays have passed through both lenses.
A man walking on a tightrope carries a long a pole which has heavy items attached to the two ends. what difference would it make to his balance
At normal incidence, the intensity of sunlight at the Earth is 1400 W/m2. find the force on the Earth due to radiation pressure from the Sun
A small mailbag is released from a helicopter that is descending steadily at 1.75 m/s. After 5.00 s, what is the speed of the mailbag
A gas fills the right portion of a horizontal cylinder whose radius is 5.57 cm. The initial pressure of the gas is 2.91 x 105 Pa. A frictionless movable piston separates the gas from the left portion of the cylinder that is evacuated and contains ..
A uniform plank of length 2m and mass 10kg is supported at each end. If a 75kg person stands 0.5m from the left end of the plank, find the force exerted on the plank by each support
how much work would it take to rotate a 10 cm diameter loop carrying 25 a of current with a normal vector oriented 30
one mole of oxygen gas is at a pressure of 5.00 atm and a temperature of 26.0degc. a if the gas is heated at constant
A toroidal solenoid has a mean radius of 10.0cm and a cross-sectional area of 4.8cm2 and is wound uniformly with 115 turns. What is the mutual inductance of these coils
A closed system is observed to have 17 objects in it. Initially, the total energy of the system is 4714 J. After 1.7 h have passed, how much total energy will the system contain
two charges repel each other r with a force of 10 -6n when they are 10 cm apart. when they are brought closer together
a flat surface having an area of 3.4 m2 is rotated in a uniform electric field of magnitude e 6.1e5 nc.determine the
A proton orbits a long, uniformly charged wire, making 1.6×10^6 revolutions per second. The radius of the orbit is 1.8 cm. What is the wire's linear charge density
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