subject
Physics, 30.03.2021 14:00 maxicanofb0011

Two thin lenses of power +3.5 D and -2.5 D are placed in contact, find the power and focal length of the lens combination.​

ansver
Answers: 2

Another question on Physics

question
Physics, 22.06.2019 13:10
Most short-period comets do not have randomly oriented orbits because
Answers: 2
question
Physics, 23.06.2019 00:00
A15,000 kg rocket traveling at +230 m/s turns on its engines. over a 6.0 s period it burns 1,000 kg of fuel. an observer on the ground measures the velocity of the expelled gases to be −1,200 m/s.
Answers: 3
question
Physics, 23.06.2019 01:10
Aheat engine that operates on a carnot cycle has an efficiency of 0.420 when its low-temperature reservoir is at 10 ∘c.part aby how many degrees celsius must you increase the temperature of the high-temperature reservoir to increase the efficiency to 0.600 if you continue to use the same low-temperature reservoir?
Answers: 1
question
Physics, 23.06.2019 02:30
Abox is sliding on a frictionless surface when it suddenly begins to rain heavily. if the downpour of rainfall falls vertically into the box
Answers: 1
You know the right answer?
Two thin lenses of power +3.5 D and -2.5 D are placed in contact, find the power and focal length...
Questions
question
Mathematics, 24.06.2019 23:00