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A 2-Mg car has a velocity of v1 = 100 km/h when the driver sees an obstacle in front of the car. It takes 0.7s for him to react and lock the brakes, causing the car to skid. If the car stops when it has traveled a distance of 225m, determine the coefficient of kinetic friction between the tires and the road.
what four processes make up the ideal otto cycle? what is happening in an actual engine during the real processes that
one-half kg of refrigerant-22 is contained in a piston-cylinder assembly initially saturated vapor at 5bar. the
a 9 m3 tank has two sections separated by a membrane both of which contain nitrogen gas. the nitrogen in section a has
a 50 cm long 800 w electric resistance heating element with diameter .5 cm and surface temperature 120c is immersed in 60 kg of water temperature to 80c. also determine the convection heat transfer coefficients at the beginning and at the end of t..
an inventor claims to have invented a heat engine that operates using energy reservirs whose temperatures are 600k and
a rigid well insulated tank contains a two-phase mixture consisting of 0.07lb of saturated liquid water and 0.07lb of
concentration is a process by which both useful heat and energy are produced. here a portion of high -pressure steam is
the flow field for and atmospheric flow is given byv -my2pi imx2pi jwhere m1 s -1 and the x and y coordinates are the
a prove using the increse in entropy principle that the maximum thermal efficiency for any heat engine is the carnot
a pontoon of constant rectangular cross section is 50 m long 10 m wide and 5 m in depth. it floats in sea water at a
boltzmanns constant is equal to 11.7 x 10-8 calcm2dk4. write a vba statement to assign the value of boltzmanns constant
two people 160-lb and 120-lb respectively are in a boat that is moving forward at 4 fts. if the 160-lb person jumps
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