Physics, 06.03.2021 14:00 antonio9768
an object of height 40cm is placed in front of a biconvex lens of radius 80mm. If the distance between the object and its image is 200mm, determine the position of the image.
Answers: 2
Physics, 21.06.2019 22:30
What is the earliest point in the universe that we can observe? why canβt we see back further than this?
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Physics, 22.06.2019 16:30
Large electric fields in cell membranes cause ions to move through the cell wall. the field strength in a typical membrane is 1.0 x 10 7 n/c. what is the magnitude of the force on a calcium ion with charge +e? what is its acceleration? is it possible for a particle with the same charge as as calcium to have a different acceleration if placed at this location? what would change the acceleration: mass of the particle? diameter of the particle?
Answers: 2
Physics, 22.06.2019 16:40
Beryl states that insulation with the smallest possible thermal conductivity is best to keep a house warm in winter, but worst for keeping a house cool in summer. sapphire insists the reverse is true: low thermal conductivity is good in the summer, but bad in the winter. which one, if either is correct? a. beryl, because low thermal conductivity results in low heat transfer. b. beryl, because low thermal conductivity results in high heat transfer. d. sapphire, because low thermal conductivity results in high heat transfer. e. neither, because low heat transfer is desirable both in summer and in winter.
Answers: 2
an object of height 40cm is placed in front of a biconvex lens of radius 80mm. If the distance betwe...
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