A 0.78-kg blob of clay strikes a wall at speed 23 m/s. The clay comes to a stop in 0.26 s. What is the average force that the wall exerts on the clay?
A-69 N
B- 49 N
C- 36 N
D- 55 N

Determine the expected diffraction angle for the first-order reflection from the (310) set of planes for bcc chromium when monochromatic radiation of wavelength 0.0735 nm is used. the atomic radius for cr is 0.1249 nm.

**urgent** roberto plans to use two transformers to reduce a voltage of 120 v to 4 v. he uses a transformer that has 300 coils in the primary winding and 50 coils in the secondary winding. he has four other transformers, as listed in the table. which transformer should roberto use to have an ending voltage of 4 v? a- w b-xc- yd- z

Can you match these to the correct definition