F PHY112 Chapter 29 Homework Question 2 of 4 > -/1 View Policies Current Attempt in Progress An incident X-ray photon of wavelength 0.2019 nm is scattered from an electron that is initially at rest. The photon is scattered at an angle of 0 = 180.0° in the drawing and has a wavelength of 0.2068 nm. Use the conservation of linear momentum to find the momentum gained by the electron. E. X e E, Photon scattering from stationary electron Number Units וח​

Visualize the problem and identify special cases first examine the problem by drawing a picture and visualizing the motion. apply newton's 2nd law, ∑f⃗ =ma⃗ , to each body in your mind. don't worry about which quantities are given. think about the forces on each body: how are these consistent with the direction of the acceleration for that body? can you think of any special cases that you can solve quickly now and use to test your understanding later? one special case in this problem is if m2=0, in which case block 1 would simply fall freely under the acceleration of gravity: a⃗ 1=−gj^.