Biology

Biology, 18.07.2019 07:50, xlitteral

What does a thermos do a) a thermos stops heat transfer b) a thermos makes things warmer c) a thermos slows heat transfer d) a thermos makes things cooler

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Physics, 21.08.2019 23:20, yungdaggerdic4543

Several ice cubes (pi=0.9167 g/cm3) of total volume vi=260 cm3 and temperature 273.15 k (0.000 degrees c) are put into a thermos containing vi=680 cm3 of tea at a temperature of 313.15 k, completely filling the thermos. the lid is then put on the thermos to close it. assume that the density and the specific heat of the tea is the same as it is for fresh water (pw=1.00 g/cm3, c=4186 j/kgk) (part a) calculate the amount of heat energy qm in j needed to melt the ice cubes (lf =334 kj/kg) answer is79610 (part b) calculate the equilibrium temperature te in k of the final mixture of tea and water. (part c) calculate the magnitude of the total heat transferred qt in j from the tea to the ice cubes.

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Mathematics, 27.08.2019 23:20, miko96

You’ve bought a cylindrical thermos 8 in. high with a base 6 in. across. how much coffee can you put in the thermos?

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Geography, 11.10.2019 03:30, danielmartinez024m

You found a shiny rock and want to find out if its gold. the mass(weight) of the rock is 45 g. you put the rock in boiling water, and the you put it in a thermos together with 1.2 dl ethanol. the thermos has the high-capacity of 31 j/k. both ethanol and the thermos had the starting temperature of 18.0°c, and stabilize at 19.5°c after the rock is put in. how can we use this information to determine if it's gold or not?

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Chemistry, 18.10.2019 04:50, Dmoney5104

Ms.markas takes a thermos bottle filled with hot coffee to work each day. the thermos bottle keeps the coffe hot by a. using a battery-powered heating element b. collecting solar heat energy c. recirculating hot air inside d. slowing heat transfer from the inside to the outside of the container

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What does a thermos do a) a thermos stops heat transfer b) a thermos makes things warmer c) a thermo...

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