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Consider three crystalline particles separated, as shown in Figure P2.11. Draw schematically and explain the change in their shape with annealing time if material transport occurs via a gas phase. Assume that all of the material evaporated is transported between particles and that the distance between particles A and B is very small.
What does the term ‘‘glass temperature'' mean? Is this a fixed temperature for a given composition of glass?
determine the smallest horizontal force required to lift the 260- crate. the coefficient of static friction at all
Determine the observed F value. Compare it to the critical table F value and decide whether to reject the null hypothesis. Perform a t test for independent measures on the data. Compare the t and F values. Are the results different? Use a = .05.
Saturated liquid steam at 2 MPa steadily enters a valve where it is throttled to 0.3 MPa. The inlet and outlet diameter is 1 cm. The flow rate is 0.012 kg/s. Determine the outlet density [kg/m3] of the steam. Also show that it is reasonable to neglec..
in an orthogonal cutting experiment with a 10-degree rake angle cutting tool the chip velocity was measured to be 80 of
two blocks of equal masses of the same material with constant specific heat are initially at temperature twice that of
the 91-lb uniform square plate is supported by a ball-and-socket joint at o a cable at e a fixture at a which can
an engine of mass 180 kg is to be supported on four helical springs. when the engine speed is 900 rpm there is a
one mole of an ideal gas at t 25 degc is held in a cylinder by a piston at a pressure of 1 x 107 n m-2. the piston
a 2 kg container of water is at 20 degrees c and is in a room having a temp of 10 degrees c. a paddle wheel stirs up
a dynamics student is called on to investigate a two-car collision. its known that car a struck car b. mass of car a is
a fragile object dropped onto a hard surface breaks because it is subjected to a large impulsive force. if u drop a
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