A beam of X-rays at a certain wavelength are scattered from a ...

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A beam of X-rays at a certain wavelength are scattered from a free electron at rest and the scattered beam is observed at 45.0 to the incident beam.
 
  What is the change in the wavelength of the X-rays? (mel = 9.11  10-31 kg, h = 6.626  10-34 J  s, c = 3.00  108 m/s)
  A) 0.175 pm B) 0.356 pm C) 0.710 pm D) 0.000 pm E) 0.276 pm

Question 2

It is possible to have a zero acceleration, and still be moving.
 
  Indicate whether the statement is true or false

[meltdown117]

Answer to Question 1

C

Answer to Question 2

TRUE

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Thanks for the timely response, appreciate it

[xiaomengxian]

Gracias!