Mathematics

Mathematics, 19.07.2019 23:00, kelseatuttleni

The total surface area is 112cm². work out the value of x. include working out.

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Physics, 12.07.2019 02:30, caz27

The laws of thermal radiation tell us that a star emits light with a total power per unit area that depends only on the star's surface temperature. the formula is power per unit area=σt4 where σ is a constant with a measured value of σ=5.7×10−8wm2×k4 (as usual, m stands for meters and k stands for kelvins.) you can then find the total power (or luminosity) emitted by the star by multiplying its total surface area by the power per unit area. use these facts to calculate the total power emitted into space by a star with a radius of 8.0×108m and a surface temperature of 6500 k. you will need the formula for the surface area of a sphere, which is surface area (sphere)=4πr2

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Mathematics, 01.10.2019 03:00, board8061

20 answer this! this is surface area! i’ve been working on this. i know what to do but i’m just confused at the same time. when you answer this question show me the work or how you got the answer. it will make my life more easier!

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Mathematics, 06.10.2019 01:30, ravenl1001

If each dimension of the rectangular prism is doubled, how will its total surface area change? mc006-1.jpg [not drawn to scale] the surface area doubles. the surface area triples. the surface area increases by a factor of four. the surface area increases by a factor of eight.

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The total surface area is 112cm². work out the value of x. include working out....

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