Recent content by Buddy123

The inventor of a water wheel claims that his design is better than a conventional overshot or breast wheel at extracting energy from water flows at low heads. He states that the design shown can generate up to 260 W of power from a head of 0.8 m. average household energy use over a 24-hour...

Workings so far... (i) the mass of the roller density = 7860 kg/m³ OD = 0.3 m ID = 0.2 m Length = 1.2 m Surface area of end section = OD – ID = π0.3² - π0.2 ² = 0.283 – 0.126 = 0.157 Volume = π r² h = 0.157 x 1.2 = 0.1884 m³ Mass = Density x Volume Mass =...

Can you tell me how to add my workings to this questions please? Also I can't see how I added this thread, there is no simple "add thread" option, I just found it somehow last time. Thanks.

Any help you can give me on the following question? (a) A heavy industrial mill roller gets loose and rolls down a slope without slipping or sliding. It drops in height 900 mm. it is made of steel and is a hollow cylinder of outer diameter 600 mm, inner diameter 400 mm and length 1.2 m...