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What is the external force in N for this particular process at state 1, state 2 and an intermediate state at P1 = 1.5bars? The piston area is 0.05 m^2.
Derive the terminal velocity v0 when acceleration becomes zero. Derive the characteristic relaxation time t* in terms of all given variables.
The rod is in an air environment with T_infinity=25C and h=30 W/m^2*K what is the temperature of the rid 75mm from the casting?
How much total expansion joint space must be allowed for to keep the superstructure free from thermal stresses? If the superstructure were welded and stress free at 70F, what thermal stress is devel
Calculate the modulus of elasticity for a polymer composite reinforced with 60.0 vol% continuous E-glass fibers in a direction perpendicular to the fibers. Take the modulus of elasticity of E-glass
Given that on a sunny day he arrives late, what is the probability that he took rout C? If he arrives late on a given day, what's the probability that it is a rainy day?
A steam turbine has 7lbm/min of steam entering at (200psi,600 degrees F) and leaving at 1 psi with a quality of 90%. Draw the process on a t-v diagram.
Using air properties for the combustion gases and assuming the surroundings to be at 25 °C and 100 kPa, determine the a) actual and reversible power outputs of the turbine, and b) exergy destroy
Assuming the surroundings to be at 75 °F, determine the a) amount of heat transfer between the source and the refrigerant and b) exergy destroyed during this process.
A 3.20-kg object has a velocity (5.60 ihatbold - 1.80 jhatbold) m/s. Find the net work done on the object if its velocity changes to (8.00 ihatbold+ 4.00 jhatbold) m/s.
A 0.500-kg particle has a speed of 2.50 m/s at point circle a and kinetic energy of 7.40 J at point circle b. What is the net work done on the particle by external forces as it moves from circle a to
A raindrop of mass 3.36 10-5 kg falls vertically at constant speed under the influence of gravity and air resistance. What is the work done on the raindrop by air resistance?
Calculate the speed of the ball just before it hits the ground ignoring air resistance. Calculate the air drag force that acts on a baseball traveling at this speed.
Determine the angular acceleration a (alpha) of the hoop and the time t for the hoop to move a distance of 10ft down the incline.
The valve is now opened and remains open. After sufficient time, the pressure and temperature in the two tanks become equal. What is the initial specific volume of the helium?
What force causes the centripetal acceleration when the coin is stationary relative to the turntable? What is the coefficient of static friction between coin and turntable?
A curve in a road forms part of a horizontal circle. As a car goes around it at constant speed 14.0 m/s, the horizontal total force on the driver has magnitude 118 N.
Determine the magnitude or bending stress and shear at point 400mm above neutral axis find also principal stress at that point.
The nuts are tightened untill the comppressive force in the tube is 5kN. Caluculate the stress in the rod and tube. Es=200GPa, Eb=80GPa.
Suggest an alternative rectangular section of the same material so that the maximum shearing force is produced due to the same shear force. The width of rectagular section is two-thirds the depth.
Consider a 77.0-kg man standing on a spring scale in an elevator. Starting from rest, the elevator ascends, attaining its maximum speed of 1.08 m/s in 0.900 s. What does the spring scale register du
A force F applied to an object of mass m1 produces an acceleration of 3.40 m/s2. If m1 and m2 are combined into one object, find its acceleration under the action of the force.
A pitcher throws the ball horizontally with velocity 12.5 m/s by uniformly accelerating it along a straight horizontal line for a time interval of 187 ms. What are the magnitude and direction of the
If B maintains its constant speed, while A begins to decelerate at a, determine the distance d between the cars at the instant A stops.
If the ball falls past him 0.75 s later, determine the velocity at which it was thrown, the velocity of the ball when strickes the ground, and the time of flight.