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If the specific enthalpy at the exit of the turbine is 2700 kJ/kg, what is the heat rejected from this Rankine Cycle in units of kJ/kg?
A car is being pulled out of the mud by two forces that are applied by the two ropes shown in the drawing. What angle would the single rope make relative to the dashed line
A 270 N sphere 0.20 m in radius rolls,without slipping 6.0 m down a ramp that is inclined at 31° with the horizontal. What is the angular speed of the sphere at the bottom of the hill
A wheel, starting from rest, rotates with a constant angularacceleration of 2.70 rad/s2. What was the angular velocity of the wheel at thestart of the 3.00 s interval
A certain core material has an actual permeability of 4.40x10^-2H/m. What is the relative permeability of the material
a child and a sled with a combined mass of 50 kg slide down a frictionless slope. what is the height of the hill
a 40g horizontal metal bar 12cm long is free to slide up and down between two tall vertical metal rods that are 12cm
An object with a charge of +29 µC is placed at the origin. Another object with a charge of +48 µC is placed a distance of +47 cm from the first object along the x axis. what is the change in the potential energy
A boy pulls with a force of 20 N on the 300 N wagon. What acceleration does the wagon have
The specific heat of mercury is 138 J/kg Co Determine the latent heat of fusion of mercury using the following calorimeter data: 1 kg of solid Hg at its melting point of -39.0º C is placed in a 0.620 kg aluminium calorimeter with 0.40 kg of water ..
The half-life of a sample of 1011 atoms that decay by alpha particle emission is 10 min. How many alpha particles are emitted in the time interval from 10 min to 100 min?
A charge of -4.39 μC is fixed in place. From a horizontal distance of 0.0132 m, a particle of mass 9.78 x 10-3 kg and charge -8.74 μC is fired with an initial speed of 90.4 m/s directly toward the fixed charge. How far does the particle travel bef..
a piano string having a mass per unit length equal to 4.80 10-3 kgm is under a tension of 1400 n. find the speed with
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