The process of combustion, or burning, is similar to the chemical processes that release energy in cells. Wood burns at a very high temperature, about 600°C. Which two statements explain how the human body is able to obtain energy without becoming too hot?
A. A large percentage of the cell is protein, which prevents rapid combustion.
B В
The breakdown-of glucose occurs in many small steps.
D
C. Low-temperature breakdown of glucose is enabled by enzymes that catalyze specific reactions.
D
Both fuel and ample oxygen are required for fire, oxygen concentration is too low in the body to allow combustion.

Consider the motion of the balloon and its air contents in terms of momentum. in step 1 above, the total momentum of the balloon and its contents was zero. recall that momentum = mv. both the balloon and the air inside it had a velocity of zero and therefore the total momentum was zero. now think about what happened when the air escaped from the balloon. a certain mass of air accelerated in one direction. in order to keep the total momentum of the system zero, the balloon itself (which has mass) had to accelerate in the opposite direction. use this scenario to you explain why the soda can rotates when the water squirts out of the escape holes. what was your hypothesis concerning the water-filled can? according to your data, do you think your hypothesis was correct? (be sure to refer to your data when answering this question.) summarize any difficulties or problems you had in performing the experiment that might have affected the results. describe how you might change the procedure to avoid these problems. give at least one more example of newton's third law in everyday life.