Answers and Explanation:
- Gravity; gravity is pulling the object down. Depending on whether the object is moving uphill or downhill, gravity can slow down or speed it up, respectively.
- Friction; this is the force that appears from contact between two surfaces. In this case, it could be the object and the floor. Friction causes resistance between the two, which can slow down the object.
Hope this helps!
Answer:
enzyme are protein that speed chemical reaction ..
Proteins, among the most complex of all organic compounds, are composed ofamino acids<span> (see Figure 2-4), which contain </span>carbon<span>, hydrogen, </span>oxygen, andnitrogen<span> atoms. Certain </span>amino acids<span> also have </span>sulfur atoms<span>, </span>phosphorus<span>, or other trace elements such as iron or copper.</span>
