Physics, 03.11.2020 22:20 kaitlynbernatz2778
A small bulb is at a distance of 1.6 m from the screen and a thin convex lens with a focal
length of 30 cm is placed between the bulb and the screen. Determine two positions of the
convex lens that can produce a sharp image on the screen.
Answers: 3
Physics, 21.06.2019 16:00
The rigid beam is supported by the three suspender bars. bars ab and ef are made of aluminum and bar cd is made of steel. if each bar has a cross-sectional area of 450 mm2, determine the maximum value of p if the allowable stress is (Οallow)st = 200 mpa for the steel and ( Οallow)al = 150 mpa for the aluminum. est = 200 gpa and eal = 70 gpa.
Answers: 2
Physics, 21.06.2019 17:40
Current enters a circuit at a: 1.positive terminal 2.negative terminal 3.low potential side 4.resistor
Answers: 1
Physics, 21.06.2019 20:20
Ateam of astronauts is on a mission to land on and explore a large asteroid. in addition to collecting samples and performing experiments, one of their tasks is to demonstrate the concept of the escape speed by throwing rocks straight up at various initial speeds. with what minimum initial speed vesc will the rocks need to be thrown in order for them never to "fall" back to the asteroid? assume that the asteroid is approximately spherical, with an average density p 3.84 x108 g/m3 and volume v 2.17 x 1012 m3 recall that the universal gravitational constant is g 6.67 x 10-11 n m2/kg2
Answers: 2
A small bulb is at a distance of 1.6 m from the screen and a thin convex lens with a focal
length o...
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