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a. What thermodynamic condition must be met for a state of equilibrium to exist?
b. Why does an alloy of eutectic composition that is cooled through the eutectic point have a microstructure consisting of alternative layers of the two solid phases?
c. Give an example of a congruent phase transformation.
d. Using the phase diagrams presented in the textbook, give examples of eutectic, eutectoid, and peritectic reactions.
If the ropes supporting the rings are attached to ceiling directly above, what is the tension in each rope.
Two people start at the same place and walk around a circularlake in opposite directions. How long will it be before they meet
A golf ball of mass 0.045 kg is hit off the tee at a speed of 49 m/s. The golf club was in contact with the ball for 4.7 x 10-3 s. Find the magnitude of the impulse imparted to the golf ball
a 20 kg rock is on the edge of a 80 m cliff. the rock falls from the cliff. what speed does the rock have as it strikes
A block of iron is suspended from one end of an equal-arm balance by a thin wire. To balance the scales, 6.15 kg are needed on the scale pan at the other end. What is the volume of the block (in m3)
A flat uniform circular disk (r= 2.00m, m=1.00*102kg) is initally stationary. Find the resulting angular speed of the disk (in rad/s) and describe thedirection of rotation
A driver applies a horizontal force of 20 N (to the right) to the top of a steering wheel. Calculate the angular acceleration of the steering wheel about the central axis
What would be the angle of the first diffraction pattern for a 650 nm laser submerged in water (n=1.33), if the diffraction grating has 800 lines per mm
Two 4.4 cm× 4.4 cm metal plates are separated by a 0.19-mm-thick piece of Teflon, What is the maximum potential difference between the disks
A coin placed 29.0 cm from the center of a rotating, horizontal turntable slips when its speed is 50.2 cm/s, What is the coefficient of static friction between coin and turntable
You tie a cord to a pail of water, and you swing the pail in a vertical circle of radius 0.600m. What minimum speed must you give the pail
John weighs 716 N, and Marcia weighs 506 N. Estimate the gravitational force between them when they are 0.45 m apart
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