In one second a mass of 210 kg of air enters at A. The speed of this mass of air increases by 570 m s–1 as it passes through the engine. Calculate the force that the air exerts on the engine.
F = M x A (A= (V-U)/T) F = 210 x 570 F = 119,700 N
SG
Related Physics A Level answers
All answers ▸What is the critical angle of a beam of light leaving a transparent material with a refractive index of 2?
3 resistors, R1, R2 and R3 are attached in parallel across a 6V cell with resistances 3, 4 and 5 Ohms respectively. Calculate the current across each resistor.
Given that a light ray enters a glass prism at angle of 50 degrees from the normal and is refracted to an angle of 30 degrees from the normal, calculate the speed of light in glass.
How can an object be accelerating if it does not change in speed?