How much compressional stress builds up in a thick aluminum bar held between 2 immovable walls if the temperature increases by 20. C°? (? = 24. × 10-6 C-1, Y = 7 × 1010 N/m2)

A) 34. × 105 N/m2
B) 34. × 107 N/m2
C) 34. × 106 N/m2
D) 34. × 104 N/m2
E) 34. × 108 N/m2


C

Physics & Space Science

You might also like to view...

For germanium at a tensile stress of 41 MPa and a temperature of 695°C, what is the primary creep mechanism? The shear modulus of germanium is 41 GPa.

What will be an ideal response?

Physics & Space Science

The average intensity of sunlight impinging on Earth is measured to be about 1.4 kW/m2. What is the power of sunlight emitted by the sun? (Earth-Sun distance = 1.5 × 108 km, Earth radius = 6.4 × 103 km)

A) 4.0 × 1026 W B) 3.2 × 1022 W C) 7.2 × 1014 W D) 7.6 × 108 W

Physics & Space Science

Why do white-dwarf supernovae all have the same maximum luminosity?

What will be an ideal response?

Physics & Space Science

An electron is moving with the speed of 1780 m/s. What is its de Broglie wavelength? (melectron = 9.11 × 10-31 kg, h = 6.626 × 10-34 J ? s)

A) 409 nm B) 302 nm C) 205 nm D) 420 nm E) 502 nm

Physics & Space Science