Answer:
7
Explanation:
Mechanical advantage is given by the ratio of the distance of the fulcrum from the two objects of the system.
Here the boulder is from the fulcrum and the mass at the other end of the lever is from the fulcrum.
So, mechanical advantage is given by
So, mechanical advantage of the board is 7.
<u>Answer</u>:
The enzyme activity decreases due to the denaturation of the enzymes.
<u>Explanation</u>:
Enzymes are built with proteins. Enzymes catalyze a reaction by binding to the substrate molecule in its active site. As temperature increases the rate of the enzyme activity increases because kinetic energy of the molecules get increases.
But when the temperature crosses approximately 37-40 degrees Celsius the structure of enzyme denatures due to breakage of its intra- and intermolecular bonds. The active parts of an enzyme changes and it can no longer bind to its substrate hence the enzyme activity decreases.
Answer:
The correct answer would be - Water.
Explanation:
Soda is a solution that has water, sugar, flavorings, carbon dioxide as its components. Carbon dioxide is dissolved under pressure in the water with other solutes like sugar and flavorings. Carbon dioxide is a gas however it is still is a solute.
Water is the component of soda that is solvent as all other components dissolve in it. Water is solvent in this solution of water, sugar, flavorings, carbon dioxide as its components. Carbon dioxide.
Thus, the correct answer is - water.