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The wheel in Fig. 10-27 has eight equally spaced spokes and a radius of 30 cm. It is mounted on a fixed axle and is spinning at 2.5 rev/s. You want to shoot a 20 cm-long arrow parallel to this axle and through the wheel without hitting any of the spokes. Assume that the arrow and the spokes are very thin. (a) What minimum speed must the arrow have? (b) Does it matter where between the axle and rim of the wheel you aim? If so, what is the best location?
helium gas in an ideal otto cycle is compressed from 12degc and 2 l to 0.25 l and its temperature increases by an
Determine the maximum speed at which the car with mass can pass over the top point A of the vertical curved road and still maintain contact with the road.
a wheel barrow is used to lift a 200 lb load. the length from the wheel axle to the center of the load is 2 ft. the
If cable spacing is 1 m into the paper, what is the cable tension.
Read the titled books Drilling Fluid Engineering Manual. Textbook prepared by M-I Drilling Fluids Co.,1998; Halliburton Cementing Tables. Casing and cement data tables prepared by Halliburton Company.
Determine the minimum thickness of fibreglas insulation that needs to be used in the wall in order to avoid condensation on the outer surfaces.
what is the effect of quenching on the transition temperature and toughness for the mild steel ?
A glass/epoxy laminate with a fiber orientation of 30 degrees is subjected to a shear stress t_xy (or tau_xy) which can be positive or negative.
a pitot-static probe connected to a water manometer is used to measure the velocity of air. if the de?ection
What is the couple moment of the two couples that act on the pipe assembly. The distance from A to B is d = 400 mm.express the result as a cartesian vector.
The number-average molecular weight of a polypropylene is 1100000 g/mol. Compute the degree of polymerization.
determine the average applied force exerted on to the pile hammer. Note because the force is applied over a short time period it can be considered as an impulse force.
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