Physics, 19.06.2021 05:50 chjfjyjh7026
1. Khi nào ta biết được chất rắn nóng chảy hoàn toàn? 2. Nếu nhiệt độ nóng chảy là xác định thì chất rắn ta xét là chất rắn kết tinh hay vô định hình. Vì sao?
Answers: 3
Physics, 22.06.2019 05:00
Which car has the most kinetic energy? a. a car of mass 1000 kg with a speed of 3 m/s b. a car of mass 2000 kg with speed 7 m/s c. a car of mass 1000 kg with speed 7 m/s d. a car of mass 2000 kg with speed 3 m/s
Answers: 1
Physics, 22.06.2019 10:00
(a) calculate the number of electrons in a small, electrically neutral silver pin that has a mass of 10.0 g. silver has 47 electrons per atom, and its molar mass is 107.87 g/mol. (b) imagine adding electrons to the pin until the negative charge has the very large value 1.00 mc. how many electrons are added for every 109 electrons already present
Answers: 3
Physics, 23.06.2019 03:30
An object is kept at 45 m high and how much time will it take to reach the ground
Answers: 2
1. Khi nào ta biết được chất rắn nóng chảy hoàn toàn?
2. Nếu nhiệt độ nóng chảy là xác định thì chấ...
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