Unbalanced forces acting on a mass will always cause the mass to
oa) speed up
ob) accelerate
oc) slow down
od change direction

The is a particle with one unit of positive charge a. proton b. positron c. electron d. nucleus awnser quick it is a important science test!

Which of the following signs of a chemical reaction are observed in the reaction of potassium with water? precipitate formed temperature change smell produced gas produced color change

Δu of , in kj/kg, as it isto k, (a)as a of , (b) at , (c) at .