Recent content by tony_physic

Surely f=ma. with a force of 3620 and a mass of 0.1 3620/0.1 = a 36200 = a. distance traveled on impact = 0.05m dist = 1/2at^2 which gives a time to stop of .0016Secs which leads to velocity on impact of only 59m/s

The acceleration will depend on the direction of the force. if it is in the direction away from the 4kg block then the acceleration will be the same.

As the question is posed he does reach his destination, because the speed change only occurs at the mile markers. So at the last mile, 1 mile from home he slows to 1mile and hour. An hour later he arrives at his destination and changes his speed to 0mph.

The problem of resolving the forces in a cement mixer is complicated surely by the coriolis effect through the medium from the centre to the perimeter

Gravity is required for a siphon. One it provides the air pressure which is required. Secondly it provides the force to move the liquid. From the diagram the water in pipe d falls under gravity, reducing the level in flask A. This lowers the air pressure in A, Providing the pressure difference...

If we assume a hemispherical ship 1km diameter the volume is 4/3pi r^3 523598775.6 cubic metres If the bath is 1cm bigger all round to allow bending etc then volume of bath is 523630182.1 The difference being the water in your bucket 31416.52 cubic metres, a big bucket. Of course if the...

A few shaving mirrors I would have thought would do the trick