Physics, 26.01.2021 17:20 Ashleymsmith
A 20kg concrete block with specific heat capacity of 3400J/kg°C is at 20°C and is heated to 65°C. What is the energy used to heat this block?
Answers: 2
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Materials will have different energies associated with the electrons inside them. this is related to how strongly bound they are by their work function. if we sandwich a material with a very low energy between two materials with a high energy, we create a trap for an electron. if this trap is very narrow in one direction in comparison to the others, this is approximately a 1-dimensional box that confines the electron. what is the lowest energy of an electron in the box if the thinnest direction across the materials is 4.81 nm?
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A 20kg concrete block with specific heat capacity of 3400J/kg°C is at 20°C and is heated to 65°C. Wh...
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