What does the area under a current-time graph represent?
What does the area under a current-time graph represent?
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Cynthia FruNew Member
If a secondary coil has 40 turns and a primary coil with 20 turns is charged with 50 V of potential difference, then the potential difference in the secondary coil would be
If a secondary coil has 40 turns and a primary coil with 20 turns is charged with 50 V of potential difference, then the potential difference in the secondary coil would be
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Marceline PekwangNew Member
What type of reaction occurs when ammonia gas reacts with hydrogen chloride gas? A. acid-base B. displacement C. redox D. substitution
What type of reaction occurs when ammonia gas reacts with hydrogen chloride gas?
A. acid-base
B. displacement
C. redox
D. substitution
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Marceline PekwangNew Member
2-methylpropan-2-ol may be formed by the reaction between 2-bromo-2-methylpropane and aqueous potassium hydroxide. What is the role of the hydroxide ions in this reaction?
2-methylpropan-2-ol may be formed by the reaction between 2-bromo-2-methylpropane and aqueous potassium hydroxide. What is the role of the hydroxide ions in this reaction?
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Cynthia FruNew Member
At equilibrium, the amount of product(s) and reactant(s) is constant. Which of the following would increase the amount of product in a reaction? A. Remove the product from the reaction vessel B. Add more product to the reaction vessel C. Increase the temperature ...Read more
At equilibrium, the amount of product(s) and reactant(s) is constant. Which of the following would increase the amount of product in a reaction?
A. Remove the product from the reaction vessel
B. Add more product to the reaction vessel
C. Increase the temperature of the reaction mixture
D. Increase the pressure of the reaction vessel
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VidaNew Member
The Haber process is a reversible reaction. If the reaction were at equilibrium, hydrogen, and nitrogen would be produced as quickly as ammonia gas was being broken down. How is the forward reaction rate increased?
The Haber process is a reversible reaction. If the reaction were at equilibrium, hydrogen, and nitrogen would be produced as quickly as ammonia gas was being broken down. How is the forward reaction rate increased?
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Cynthia FruNew Member
The particles in a system are always in what kind of motion?
The particles in a system are always in what kind of motion?
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Starting with javascript is important, it shows you the basics of object oriented programming and how a DOM can interact with HTML to edit the frontend. This principle is necessary in Django, however by using python, there is a large ...Read more
Starting with javascript is important, it shows you the basics of object oriented programming and how a DOM can interact with HTML to edit the frontend. This principle is necessary in Django, however by using python, there is a large amount of key principles left out. Learning how types operate and why data locations should be managed by the programmer is an essential skill, but easily managed by python, for this reason, I would start with Javascript to understand how to change the front end, and then “migrate” these skills into Django only once you have learned the key OOP principles
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If you asked this question in 2011, the reply would have been: “probably yes, but only because of the massively huge code base developed in 15 years”. In 2017, we have to reply: “There has been a disruptive factor called PHP ...Read more
If you asked this question in 2011, the reply would have been: “probably yes, but only because of the massively huge code base developed in 15 years”.
In 2017, we have to reply: “There has been a disruptive factor called PHP 7. It changed a lot in the backend development perspective”.
PHP 5.5+ had been a big step up already. From the ancient, C flavoured spaghetti code, to a proper rich and modern language.
PHP 7 is not “just” monstruosly fast (it’s been reenginered from scratch), it also takes a LOT of the “good stuff” from Java and other good languages and makes it extremely easy to create proper code.
Code fast, code fast code (!) and have nothing special to install. No stale compiled files, no need for complicated sources building software, no need for a compiler at all.