Determine the focal length and back focal length
A compound lens assembly consists of 2 lenses which are 5 cm apart with the focal lengths of a 135 cm and 275 cm. Determine the focal length and back focal length for this assembly?
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With a grating spacing of around 2250 nano-meters, a light wave length of 500 nano-meters, for orders 1 and 2, determine the corresponding angles which will be in-phase for this grate spacing?
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In effort to determine the effects of the drug chlorpromazine on performance of schizophrenics, two clinical investigators randomly selected 20 acute schizophrenics from a mental hospital population.
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A box of mass '2000.0 g' is at rest on the top of a building '200.0 m' tall. The box is then allowed to drop. Determine the velocity of the box if it has fallen by '80.0m'. Employ only energy considerations and suppose free fall.
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It was hypothesized that sensory deprivation inhibits the intellectual development of animals. To test this hypothesis an experimenter used two rats
A car having a mass of '1000.0 kg' is moving at a speed of '12.0 m/s'. What should be the speed of a tennis ball having a mass of '0.06 kg' when it consists to encompass the similar kinetic energy as the car?
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