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 […]
Tag: education
Physics of rainbow
A rainbow appears in the heavens opposite to the sun and it is caused by the refraction and reflection of the sun’s rays in water droplets. […]
Do you know the perfect number?
A perfect number can be expressed by the sum of its positive divisors except itself. For example, the specified divisors […]
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} = […]
Need physics help?
Hi there! Are you taking introductory physics courses? Are you doing well in the class? Do you need any help […]