QUESTION 2 Convert the mass of a 168 lb object to kg. (2.21 lbs = 1.00 kg) A. 370. kg B. 168 kg C. 76.0 kg D. 152 kg QUESTION 3 Gold has the density of 19.3 g/cm A. 0.525 cm 3 B. 3 0.272 cm C. *0.0272 cm 3 10.1 cm 3 3 What is the volume in cm 3 of a 0.525 g piece of gold? QUESTION 4 A radio wave has a wavelength of 3.10 m. Calculate the frequency of this radio wave. A. 9.68 x 10 7 1/s B. 9.68 x 10 3 1/s C. 9.68 1/s 9.30 x 10 8 1/se