Chich expression correctly describes force using Sl units O A. 1 N = 1 kg-m/s2
B. 1 N = 1 kg. m/s
C. 1 J = 1 kg-m/s?
D. 1 J = 1 kg m/s

At 20∘c, the hole in an aluminum ring is 2.800 cm in diameter. you need to slip this ring over a steel shaft that has a room-temperature diameter of 2.804 cm . 1. to what common temperature should the ring and the shaft be heated so that the ring will just fit onto the shaft? coefficients of linear thermal expansion of steel and aluminum are 12×10−6 k−1 and23×10−6 k−1 respectively.

Give me a example of a decomposer. explain what would happen if decomposers were absent from a forest ecosystem

Elements that have one valence electron and are very reactive are called