Jonah observes the sun through a special filtered telescope during a total solar eclipse. he sees a red ring and a faint white ring that looks like a crown. which parts of the sun is he seeing? use what you know about word origins to answer the question. a. corona and photosphere b. photosphere and corona c. chromosphere and corona d. radiative zone and chromosphere
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Physics, 22.06.2019 01:50
Arod of some material 0.20 m long elongates 0.20 mm on heating from 21 to 120°c. determine the value of the linear coefficient of thermal expansion [in (degrees c)^-1] for this material.
Answers: 2
Physics, 22.06.2019 22:00
Which of these is the best way to manage a natural resource
Answers: 3
Physics, 23.06.2019 00:20
You are the coordinator for a program that is going to take place at night in a rectangular amphitheater in the mountains. you will have no access to any electricity, but you must be able to illuminate the entire grounds. you know the intensity of the light from a lantern varies inversely as the square of the distance from the lantern. suppose the intensity is 90 when the distance is 5 m. a. write an equation to model the situation. b. solve for the constant of variation. c. write the equation to model the situation using the constant () of variation. d. you have been given lanterns with 40 light intensity. use your equation to solve for the distance from the lantern. e. you need to illuminate 225 km. how many meters do you need to light? f. how many lanterns will you need?
Answers: 3
Physics, 23.06.2019 02:20
Ahole in the ground in the shape of an inverted cone is 14 meters deep and has radius at the top of 11 meters. the cone is filled to the top with sawdust. the density of the sawdust depends upon the depth, x, following the formula Ď ( x ) = 2.5 + 1.2 e â 0.7 x kg/m3. find the total mass of sawdust in the conical hole.
Answers: 1
Jonah observes the sun through a special filtered telescope during a total solar eclipse. he sees a...
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