Engineering, 03.09.2019 01:30, ash848
A1500-kg car travels on a level road at 42 m/s (state 1). it then continues down a hill to a lower part of the road (state 2), dropping in elevation by 25 meters in the process. if the car coasts without friction, what is its speed in state 2? assume that g = 9.81 m/s2.now imagine it coasts, starting at 42 m/s in state 1, but there is friction from aerodynamic drag and rolling resistance. the car’s speed in state 2 is now 43 m/s. if the car’s temperature stays constant, what is the heat transfer to the surrounding air?
Answers: 3
Engineering, 04.07.2019 18:20, RiverH246
Air flows over a heated plate àt a velocity of 50m/s. the local skin factor coefficient at a point on a plate is 0.004. estimate the local heat transfer coefficient at this point. the following property data for air are given: density = 0.88kg/m3 , viscosity 2.286 x 10 ^-5 kgm/s , k = 0.035w/mk ,cp = 1.001kj/kgk. use colburn reynolds analogy.
Answers: 1
Engineering, 04.07.2019 18:20, annette211pdd8v9
For a gate width of 2 m into the paper, determine the force required to hold the gate abc at its location.
Answers: 1
Engineering, 04.07.2019 18:20, cxttiemsp021
Atank with constant volume contains 2.27 kg of a mixture of water phases (liquid-vapor). in the initial state the temperature and the quality are 127 °c and 0.6, respectively. the mixture is heated until the temperature of 160 oc is reached. illustrate the process in a t-v diagram. then, determine (1) the mass of the vapor in kg at the initial state, (2) the final pressure in kpa.
Answers: 3
A1500-kg car travels on a level road at 42 m/s (state 1). it then continues down a hill to a lower p...
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