Heat can be transferred from one place to another by three methods: conduction in solids, convection of fluids (liquids or gases), and radiation through anything that will allow radiation to pass. The method used to transfer heat is usually the one that is the most efficient.
Let x be the no. of seconds it takes for the balloons to be at the same height. 7+3x = 12+2x Deduct both sides by 2x. 7+x = 12 Deduct both sides by 7. x = 5 Ans: It will take 5 seconds for the balloons to be at the same height.
