A mixture of iron and sulphur is kept in a watch glass. Explain your observations when i) a magnet is brought near the mixture.
ii) it is heated
iii) dil. hydrochloric acid is added to it,

Aball thrown by ginger is moving upward through the air. diagram a shows a box with a downward arrow. diagram b shows a box with an upward arrow. diagram c shows a box with a downward and upward arrow equal in size. diagram d shows a box with a downward and upward arrow with the downward arrow larger in size. which force diagram represents the forces on the ball? you may neglect the effects of air resistance.