Physics, 31.12.2019 04:31, AlwaysMarcus5577
Aperson with a near point of 120 cmbut excellent distant vision, normally wears corrective glasses. but he loses them while traveling. fortunately, he has his old pair as a spare. a) if the lenses of the old pair have a power of +2.60 diopters , what is his near point (measured from his eye) when he is wearing the old glasses if they rest 2.00 cm in front of his eyes? front of his eye? b) what would his near point be if his old glasses were contact lenses instead?
Answers: 2
Physics, 22.06.2019 02:30, raularriaga
If a refrigerator is a heat pump that follows the first law of thermodynamics, how much heat was removed from food inside of the refrigerator if it released 380j of energy to the room?
Answers: 1
Physics, 22.06.2019 03:30, 1074885
The solar panels used by mark function because of the photoelectric effect. light shines on the cells causing electrons to be ejected from the metal, which produces an electric current. at night on mars, no light will fall on the solar cells and no electric current will be generated. according to your notes, what type of light is typically needed to cause the photoelectric effect? a)visible b)ultraviolet c)infrared
Answers: 1
Physics, 22.06.2019 10:30, tyw3366812778
Awoman holds a book by placing it between her hands such that she presses at right angles to the front and back covers. the book has a mass of m = 1.8 kg and the coefficient of static friction between her hand and the book is μs = 0.67. no attempt 50% part (a) what is the weight of the book, fgb in newtons?
Answers: 3
Aperson with a near point of 120 cmbut excellent distant vision, normally wears corrective glasses....
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