Какое количество теплоты Q потребуется для обращения в воду льда массой 100 г, взятого при 0 °С и превращении всей воды в пар? Удельная теплота плавления льда λл = 3,4⋅105 Дж/кг, удельная теплота преобразования воды L = 2,3⋅106 Дж/кг. Удельная теплоёмкость воды c = 4200 Дж/(кг∙°С).
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Physics, 22.06.2019 11:30
If forces acting on an object are unbalanced. true or false
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Physics, 22.06.2019 16:00
What is the measure of how much matter is in an object and that can be measured using a balance? a. height b. volume c. weight d. mass
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Physics, 22.06.2019 18:30
Jenny wants to test the electrical conductivity of two substances dissolved in water. she is preparing the containers for the experiment. which factor is most important for her to control? a) volumes of the solutions b) appearance of the solutions c) temperatures of the solutions d) concentrations of the solutions
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Physics, 22.06.2019 19:40
Two charged particles, q1 and q2, are located on the x-axis, with q1 at the origin and q2 initially at x1 = 12.2 mm. in this configuration, q1 exerts a repulsive force of 2.62 µn on q2. particle q2 is then moved to x2 = 18.0 mm. what is the force (magnitude and direction) that q2 exerts on q1 at this new location? (give the magnitude in µn.)
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Какое количество теплоты Q потребуется для обращения в воду льда массой 100 г, взятого при 0 °С и пр...
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