Our physics expert picks his top-five equations, plus a scheme to supply US power needs with a bucket of baseballs. Thanks, ...

Bernoulli's equation is a simple but incredibly important equation in physics and engineering that can help us understand a ...

This equation is called the continuity equation for steady one ... A streamline is a line that is tangential to the instantaneous velocity direction (velocity is a vector, and it has a magnitude and a ...

The gradient of a velocity-time graph at a particular time gives the acceleration of the object at that time. \(\text{Gradient} = \frac{{change\,in\,velocity ...

The wavelength equation is v = λ x f, where λ is the wavelength, v is the wave velocity and f is the wave's frequency. This formula highlights the inverse relationship between wavelength and ...

The relationship between acceleration, velocity change and the time taken for the change is given by this formula. \(\text{acceleration}=\frac{\text{change in velocity}}{\text{time taken}}=\ ...

and velocity (v) space, and electrons are a charge-neutralising fluid. This approach neglects electron kinetic effects but retains ion kinetics. The time-evolution of f(r,v,t) is given by Vlasov's ...

Although these restrictions sound severe, the Bernoulli equation is very useful, partly because it is very simple to use and partly because it can give great insight into the balance between pressure, ...