Hi! I'm a few days late since I just saw this question just now, but I'll answer anyway.
Answer:
When an unbalanced force acts on a moving object, the velocity of the object will change. Change in velocity means a change in speed, direction, or both. For example, if you kick a soccer ball and it moves from one place to another, it means that unbalanced forces are acting upon it. The ball moves from one place to another after kicking it so the position changed.
Wear protective gear, such as helmets, protective pads, and other gear.
Warm up and cool down.
Know the rules of the game.
Watch out for others.
Don't play when you're injured.
Answer:
0.058 kg or 58 g
Explanation:
The amount of heat energy required to cool 1.94 kg of water from 34 Celcius to 11 Celcius degrees is:
where m = 1.94 kg is the water mass, c = 4186 J/kg.C is water specific heat and 
Hence H = 1.94 * 4186 * 23 = 186779.32 J
The required mass of ice to absorb this amount of heat would be
I believe it's a floating balloon because for every action there is an equal and opposite reaction, so the balloon floats up and eventually floats back down.
