What year did Vidal Sassoon come to America ?

The y form of iron is known as: a) ferrite b) cementite c) perlite d) austenite

What precautions should you take to prevent injuries when dealing with heavy loads?

If a particle moves along a path such that r : (3 sin t) m and ? : 2t rad, where t is in seconds. what is the particle's acceleration in m/s in 4 seconds? a)- 16.43 b)- 16.29 c)- 15.21 d)- 13.79