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التاريخ

الموضوع:

1. Acyclist moves 12 km due to north and then

5km due east in 3hr.

Find / as his average speed

b) average vel velocity, in m/s

Consider a vortex filament of strength in the shape of a closed circular loop of radius R. Obtain an expression for the velocity induced at the center of the loop in terms of T and R

The main difference between trusses and frames is trusses are made up of two force members and Frames are made up of multiple force member. a) - True b) - False

In the fluid-flow analogy for electrical circuits, what is analogous to a conductor? In the fluid-flow analogy for electrical circuits, what is analogous to a conductor?

A 7.5-ft-long solid steel shaft (G = 11.2 x 106 psi) is to transmit 15 hp at a speed of 1500 rpm. The shaft is limited to an allowable shearing stress of 4.5 ksi and an allowable angle of twist of 4 degrees. Determine: a.

Explain the process of predicting equipment failure?

16 Suppose that a steel of eutectoid composition is cooled to 550°C (1020°F) from 760°C (1400°F) in less than 0.5 s and held at this temperature.

The rotor in a shaded pole motor consists of A coils energized by alternating current B a short circuited loop of copper wire c a permanent magnet D an iron cylinder

What factors are likely to promote the formation of stress corrosion cracks?

Find the mass if the force is 18 N and the acceleration is 2 m/s2

Which process must first take place in order for the proteins in foods to be used by body cells? (1) digestion (3) synthesis (2) storage (4) excretion