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M
Mechanical Science 2

thanks for all your help on my last post the pennies are starting to drop and things are getting clearer but i still fall by the way side with calculations and onceagain i'm having trouble with this one any help would be much appreciated thanks A crane raises a 2.5 tonne load vertically in...
- mpc4000
- Thread
- Feb 10, 2011
- mechanical science
- Replies: 5
- Forum: Electrical Wiring, Theories and Regulations
M
Mechanical Science

just been given this query to do for my level 2330 any help would be much appreciated thanks An electric hoist on the side of a building 45m lifts a quantity of electrical equipment through a vertical distance in 3.5 minutes. The motor rating of the hoist is 189.19w. Calculate the MASS of the...
- mpc4000
- Thread
- Feb 4, 2011
- mechanical science
- Replies: 10
- Forum: Electrical Wiring, Theories and Regulations
R
Why do JBs melt? Science!

We've all come across the scenerio - you lift a floorboard to discover a JB connecting the ring to another five or six spurs, and it's all melted and black. But why? Is it simply because there are too many cables in the terminals, so they have worked themselves loose,started arcing and burned...
- rocker
- Thread
- Aug 29, 2010
- aus science
- Replies: 3
- Forum: Australia
C
i always wondered how it worked too :P

Science Fail - FAIL Blog: Epic Fail Funny Pictures and Funny Videos of Owned, Pwned and Fail Moments :p
- claire_r
- Thread
- Jul 5, 2010
- always electrical work funny science wondered worked
- Replies: 0
- Forum: Electricians Chat - Off Topic Chat

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