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How much energy (kJ) is needed to accelerate an 1800 kg vehicle from 10 km/h to 30 km/h? Assume that the acceleration takes place over a 10 second time period, on level ground, and that you can neglect aerodynamic drag and tire friction. Also calculate how much power is needed?
a simplified gear system for a mechanical watch is shown. knowing that gear a has a constant angular velocity of 1
it takes 0.5 seconds for one to lift the cart handle from 0 to 450 in a linear way around o. if the block has a mass of
To determine the heat transfer characteristics of a cylinder under cross flow conditions when the cylinder is isolated.
Determine an equation for the efficiency of the gear train in terms of the load (torque) on shaft 2 and determine the input power required at shaft 1.
Steady State Thermal analysis can be use to simulate and obtain results to support the design optimization / objectives
carbon monoxide an ideal gas in a piston cylinder at an initial state of 320 k 160 kpa and 0.2 m3 is compressed in an
the electric heating systems used in many houses consist of a simple duct with electrical resistance wires. air is
saturated vapor steam at 5 psia eneters an adiabatic heat exchanger and leaves as saturated liquid at 5 psia. the steam
a packed bed is composed of crushed rock with a density of 175 lbmft3nbspof such anbspsize and shape that the average
a sample of tungsten w contains an edge dislocation. w can be treated as elastically isotro pi c and the dislocation is
water flows at a rate of 20 ls through a horz pipe dia .03 m. the pressure drop across the valve in the pipe is
As shown, a 150 lb bungee jumper wants to jump from the top of a 630 ft high bridge and be able to just touch the water below. Given that the bungee cord has a spring constant of 108 lb/ft, what should the bungee cord's relaxed length, l, be for t..
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