A turbine blade made of Udimet 700 must be able to operate at a temperature of 1000°C (1832°F) for a time of 10,000 h between inspections. What is the maximum tensile stress for this blade based upon high-temperature creep rupture?

What will be an ideal response?


Physics & Space Science

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How much heat is required to raise the temperature of a 225-g lead ball from 15.0°C to 25.0°C? The specific heat of lead is 128 J/kg ? K

A) 725 J B) 576 J C) 145 J D) 217 J E) 288 J

Physics & Space Science

The figure shows a distance vs. time graph of an object with three distinct regions, I, II, and III

?
The object’s acceleration is negative in region(s)

a.
I.
b.
II.

c.
III.
d.
no regions

Physics & Space Science

An aircraft approaches a runway that runs directly east as a strong wind blows out of the south. The direction that the aircraft should points in order to land on the runway is __________

Fill in the blank(s) with correct word

Physics & Space Science

Which of the following is true of spring tides?

A) They occur at noon and midnight every day. B) They occur at first- and third-quarter moons. C) They occur at dawn and dusk every day. D) They occur at new moon and full moon.

Physics & Space Science