What is horse power?
Power is energy per unit time. That’s the efficiency of work. Now here is a question. Which horse power is […]
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Why is a diamond so glittering?
The surface of the diamond is cut in a particular angle. As a result, when light enters the diamond, the […]
You need to know the following math before taking introductory physics.
I have seen the following mathematical errors for years in physics classes. \(\sqrt{16ab} = 4ab \) The correct one should […]
Can you find the errors in these equations?
Can you correct the following equations? \((a+b)^2 = a^2 + b^2 \) \(\frac{1}{a+b} = \frac{1}{a} + \frac{1}{b} \) \(\frac{10^{10}}{2} = […]
Can you solve this problem? (The area of squares)
In the picture, there are three squares. Each size of square is different, and the they are aligned as shown. […]
Need physics help?
Hi there! Are you taking introductory physics courses? Are you doing well in the class? Do you need any help […]