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Helical symmetry A particle moves in a conservative field whose potential energy V has helical symmetry. This means that V is invariant under the simultaneous operations (i) a rotation through any angle α about the axis Oz, and (ii) a translation cα in the z-direction. What conservation principle corresponds to this symmetry?
the breaking strength x kg of a certain type of plastic block is normally distributed with a mean of 1500 kg and a
Assume that the coefficient of friction of the glass sliding on the tablecloth or sliding on the tabletop is 0.5. (For the trick to be effective the cloth should be pulled out so rapidly that the glass does not move appreciably
Design the formwork for a 12-ft-high reinforced concrete wall. Concrete will be placed at a rate not to exceed 5 ft/h and will be internally vibrated.
a thermopane window consists of two pieces of glass k 0.78 wmk 7 mm thick that enclose an air space k 0.026 wmk 7 mm
Assume that concrete acts as a liquid when it is first poured and has a specific weight of 24 kN/m3.
assignment overview carbon fibre reinforced polymers cfrp have been used extensively in aerospace applications due to
Calculate the specific enthalpy change associated with the process
A 3.03-ft3 rigid tank contains saturated refrigerant- 134a at 100 psia. Initially, 17 percent of the volume is occupied by liquid and the rest by vapor. A valve at the top of the tank is now opened, and vapor is allowed to escape slowly from the tank..
part 1 - energy in the home personal energy use and home energy efficiency.estimate your personal annual energy usage
Your answer has two parameters, the average thickness of the tunnel oxide and the radius of the hemispherical Si intrusion into the oxide.)
question 1approximate the torque and power necessary to rotate the inner 20 cm diameter cylinder shown in figure 1. sae
Determine the loss for a fluid particle flowing from (1) to (3), from (2) to (3). Gravity is negligible.
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