If a racehourse starts from rest and accelerates at a rate of 4.7 m/s2. how long does it take the hourse to go 20 m?
a. 4.3 s
b. 8.5 s
c. 9.1 s
d. 2.9 s

glass has been rated on the mohs scale as 5.5

explanation: magnetic pole, region at each end of a magnet where the external magnetic field is strongest. the south-seeking pole, or any pole similar to it, is called a south magnetic pole. unlike poles of different magnets attract each other; like poles repel each other.