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A 0.3 kg softball has a velocity of 15 m/s at an angle of 35° below the horizontal just before making contact with the bat. What is the initial linear momentum of the ball? What is the magnitude and direction of the change in momentum of the ball while it is in contact with the bat if the ball leaves the bat with a velocity of (a) 20 m/s, vertically downward and (b) 20 m/s, horizontally away from the batter and back toward the pitcher?
The piston is then move in,and heat is rejected bt the air reversibly at constant pressure until the volume is the same as it was initially.Calculate the net heat flow and the overall change of entropy.sketch the process of p-V and T-s diagram.
the airbus a-340 passenger plane has a maximum takeoff weight of about 260000 kg a length of 64 m a wing span of 60 m a
A steel rod 1 cm in diameter and 30 cm long protrudes from a steel surface at 150 C. The rod is surrounded by air at 10 C with a convective heat transfer coefficient of 10 W/m2 C. The thermal conductivity of steel is 114 W/m C. Determine the heat ..
What is the true altitude of the plane above sea level? What would be the indicated altitude after landing at an aerodrome located at sea level? (Gas const = R=288 J/KgK)
a removable bracket must be attached to the frame of a machine tool as a support. the need for interchangeability
5ft3 of ammonia is initially at 100 psi and a specific volume of 0.024ft3lbm is heated or cooled to make this an
Use thin airfoil theory to show that the pressure coefficient across the length of the ellipse in the stream-wise direction is constant when it is assumed T
the motion of a particle is defined by the position vector r=a(cos t + t sin t)i + A(sin t-t cos t)j, where t is expressed in seconds. Determine the values of t for which the position vector and acceleration are.
non-equilibrium statistical treanor distribution for vibrationally excited molecules. based on the non-equilibrium
this would provide you with a set of Reynolds numbers. Next, using the integral method, determine the velocity profiles within the boundary layer to be followed by determination of the heat transfer coefficient values for your selected Reynolds numbe..
a u manometer reads 20 cm air as operating fluid and a given manometric fluid. a single branch closed tube reads 35 cm
the system is released from rest with the cable taut. neglect the small mass and friction of the pulley and calculate
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