Physics Week 21 HW for Ch. 29 Posted on April 3, 2018 by Krishna Chowdary For spring quarter, please find a Physics page, also linked in the main navigation bar. You can find the Week 21 HW problems for Ch. 29 there. Complete All Problems in your Physics Problem Set Notebook. Bold underline problems also due via MasteringPhysics by 9pm on Sat. Apr. 7, 2018.