To which group of polymers does Teflon belong?
a. Natural
b. Hydrolytic
c. Addition
d. Condensation
c
Physics & Space Science
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-rays of energy 2.9 × 104 eV are scattered by a free stationary electron through an angle of 135°. What is the energy of the scattered X-rays, in electron volts?
(mel = 9.11 × 10-31 kg, e = - 1.60 × 10-19 C, h = 6.626 × 10-34 J ? s, c = 3.00 × 108 m/s, 1 eV = 1.60 × 10-19 J) What will be an ideal response?
Physics & Space Science
Which interacts more with high-frequency light?
A) large particles B) small particles C) both the same
Physics & Space Science
In organic molecules, a bromine atom will normally form how many bonds?
a. 2 b. 3 c. 4 d. 1 e. 0
Physics & Space Science
Predict the heat transfer per unit area for warm water at 70ºC placed in a large pan at 10ºC.
What will be an ideal response?
Physics & Space Science