A 2400 kg car starting from rest accelerates to a speed of 60 km/h in 6,0 s. Determine; b) the net force required to accelerate the car. (Show all your work for 3 marks - It helps to
number your steps)

Give an example in which the electrical energy changes to light energy

What part of the ear is names after tools, such as the hammer and the anvil?

Engines for propeller-driven aircraft are limited in their maximum rotational speed by the fact that the tip speed of the propeller must not approach the speed of sound in air (mach i). taking 6 ft as a typical diameter for a propeller of a light airplane and 1100 fils as the speed of sound, find the upper limit on the rpm (revolutions per minute) of the propeller shaft.