Физика. Тело массой m брошено вертикально вверх. Если бы сопротивление со стороны воздуха отсутствовало, тело поднялось бы на высоту h. Из-за сопротивления воздуха реальный подъём тела составил 0,9h. Определите работу силы сопротивления воздуха.
Rome is not only an ancient city or a capital of Italy. It is a special place where everyone can feel himself at home. You will never be alone in Rome, because it seems that all people know each other and even tourists don’t feel uncomfortable there.
Rome is obviously an amazing city where you can see and visit such famous monuments as the Colosseum, the Roman Forum, the Pantheon, the Trevi Fountain and Vatican City. All these and many other tourist attractions amaze and make such a great impression that you will never be able to forget them.
Apart from sightseeing, you can also explore Italian culture in Rome. You can feel yourself a part of a mysterious rite entering any patisserie or bar in the morning. Once you share your breakfast consisting of a cup of creamy cappuccino and filled croissant with those Italians who come to that place, you will become more relaxed and even “Italian”.
And finally, you can enjoy yourself in a big park area in Rome. It is called “Villa Borghese” and it is a perfect place to spend a hot and sunny day under its trees or to walk its wide paths in. In addition, Villa Borghese can offer you different other activities. You can visit famous “Borghese Gallery” and also a zoo placed in the park.
Consequently, Rome is a city where everyone can find his place. You can walk, visit museums, do shopping, go to opera and do many other things there. But there’s one thing that you will certainly do in Rome – you will enjoy yourself.
Rome is not only an ancient city or a capital of Italy. It is a special place where everyone can feel himself at home. You will never be alone in Rome, because it seems that all people know each other and even tourists don’t feel uncomfortable there.
Rome is obviously an amazing city where you can see and visit such famous monuments as the Colosseum, the Roman Forum, the Pantheon, the Trevi Fountain and Vatican City. All these and many other tourist attractions amaze and make such a great impression that you will never be able to forget them.
Apart from sightseeing, you can also explore Italian culture in Rome. You can feel yourself a part of a mysterious rite entering any patisserie or bar in the morning. Once you share your breakfast consisting of a cup of creamy cappuccino and filled croissant with those Italians who come to that place, you will become more relaxed and even “Italian”.
And finally, you can enjoy yourself in a big park area in Rome. It is called “Villa Borghese” and it is a perfect place to spend a hot and sunny day under its trees or to walk its wide paths in. In addition, Villa Borghese can offer you different other activities. You can visit famous “Borghese Gallery” and also a zoo placed in the park.
Consequently, Rome is a city where everyone can find his place. You can walk, visit museums, do shopping, go to opera and do many other things there. But there’s one thing that you will certainly do in Rome – you will enjoy yourself.
Объяснение:
Приборы и материалы: Весы, термометр, калориметр, кусок льда, фильтрованная бумага, чайник (один на весь класс), компьютер и дискета
Ход работы:
1. Взвесьте на весах внутренний сосуд калориметра – mк;
2. Налейте в него воду и взвесьте сосуд калориметра с водой – m;
3. Вставьте внутренний сосуд с водой во внешний и измерьте температуру воды tв;
4. Опустите в воду кусок льда, осушив его предварительно фильтрованной бумагой;
5. Помешивая воду термометром, отметьте самую низкую температуру в калориметре t;
6. Вновь взвесьте калориметр (mкл)и определите массу опущенного в воду льда mл;
7. Запустите Excel и создайте таблицу:
A
B
C
D
E
F
G
H
I
J
K
L
1
Масса калориметра
Масса калориметра с водой
Масса воды без льды
Температура воды без льда
Температура воды со льдом t
Масса воды со льдом
Масса льда
Кол-во теплоты, отданное калориметром
Кол-во теплоты, отданное водой
Кол-во теплоты, расходуемое на плавление льда
Кол-во теплоты, затраченная на нагревание воды, полученной из льда
Удельная теплота плавления льда
- в ячейки C2, F2, G2, H2, I2, J2, K2, L2 –введите формулы расчета соответствующих величин, если
1) Масса воды:
2) Масса льда
3) Уравнение теплового баланса: , где
Q1 - количество теплоты, отданное калориметром
Q2 - количество теплоты, отданное водой
Q3 - количество теплоты, расходуемое на плавление льда
Q4 - количество теплоты, затраченная на нагревание воды, полученной из льда
- объедините диапазон ячеек A3:L3, и введите вывод по проделанной работе.