Physics, 20.07.2019 04:20 sequoyaburke
To treat a burn on his hand, a person decides to place an ice cube on the burned skin. the mass of the ice cube is 16.4 g, and its initial temperature is −13.6 ∘c. the water resulting from the melted ice reaches the temperature of his skin, 31.7 ∘c. how much heat is absorbed by the ice cube and resulting water? assume that all of the water remains in the hand. constants for water can be found in this
Answers: 2
Physics, 21.06.2019 20:30
Protons and neutrons are found within the nucleus of an atom
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Physics, 22.06.2019 06:00
The magnetic field inside a superconducting solenoid is 4.50 t. the solenoid has an inner diameter of 6.20 cm and a length of 26.0 cm. determine (a) the magnetic energy density in the field and (b) the energy stored in the magnetic field within the solenoid.
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Physics, 22.06.2019 09:00
Sobre transformações cÃclicas, são feitas algumas afirmações, determine quais estão corretas. i – a variação de energia interna em uma transformação cÃclica é nula; ii – o trabalho, em uma transformação cÃclica, é sempre positivo; iii – ao completar um ciclo, o gás tem a mesma temperatura com a qual começou a transformação; iv – uma transformação cÃclica é, obrigatoriamente, composta de transformações conhecidas, como adiabática, isocórica, etc: a) i e iii b) i e ii c) ii e iii d) i e iv e) iii e iv
Answers: 1
Physics, 22.06.2019 09:00
In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j? 1. write the equation 2.list out your known variables 3.plug the numbers into the equations 4.solve 5.write your solution statement that includes initial energy and final
Answers: 1
To treat a burn on his hand, a person decides to place an ice cube on the burned skin. the mass of t...
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