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1. ### How to solve this equation

Does it treat this equation as Bernoulli's equation? $$\frac {dy} {dx}\ +P(x)=Q(x)y^n$$

thank you

very good!
4. ### A What is a differentiable variety?

In mathematics, variety is a generalization of the surface idea. There are several types of varieties, according to the properties they possess. The most usual are the topological varieties and the differentiable varieties. but I still do not know what it is!
5. ### How to solve this equation

$$m\frac {dv} {dt} =mg- β v^n$$
6. ### How to solve this equation

Homework Statement A body falling under the action of the drag force of the air -βvn n ∈ ℤ m= mass v= velocity g= 9,8m/s2 β= coefficient of air resistance Homework Equations m(dv/dt)= mg-βvn The Attempt at a Solution I can not resolve to any integer (n)
7. ### I Inertial reference

so a photon of light can not be an inertial frame?
8. ### I Inertial reference

Can light photons be considered as a privileged inertial frame?
9. ### B How to solve this equation?

is the equation of a falling body having as resistance force bv ^ n
10. ### B How to solve this equation?

m (dv / dt) = mg-bvn