How much work is being done if a 100 N box is lifted 3 meters off the ground? A leaky bucket is being lifted 20 meters. It originally holds 10 kilograms of water, and at the end of its journey it holds 5 kilos...
If these 1,200 tonnes of emissions are spread out over an estimated lifetime of 50 years, then theEcoClipper500would have a carbon footprint of about 2 grammes of CO2 per tonne-kilometre of cargo, concludes researcher Andrew Simons, who made the life cycle analysis for the ship. This is ...
at 4g the point loads are about 400 kilos. Whereas with a 1.6 tonne car at 4g, you’re looking at a three- or four-tonne load through any point. And you can’t predict where the presenters are going to drive, so you have to have the entire surface designed to resist ...