Therefore, to find the velocity V_e, we need to know the density of air, and the pressure difference (p_0 - p_e). The density can be found from standard tables if the temperature and the pressure are ...

Remember, acceleration is the same as gradient, and acceleration = velocity change ÷ time. To find the distance travelled, look at the area under the graph. In the first 10 seconds this is the ...

To calculate wavelength ... typically measured in meters, wave velocity in meters per second, and frequency in hertz (cycles per second). The wavelength formula is a practical tool for scientists ...

The relationship between acceleration, velocity change and the time taken for the change is given by this formula ... and u = starting velocity. Find the acceleration of a car, if it starts ...