Image result for Is work done when you carry a book across the room at a constant velocity
Work is not done when you carry an object forward. You may have learnt that carrying an object and moving horizontally at a constant velocity has no work done. The truth is, there is a slight amount of work done due to overcoming air resistance in the horizontal direction.
A true a substance that can be decomposed by bacterial
In cellular respiration is the process of extracting energy in the form of ATP from the glucose in the food you eat. In stage one glucose is broken down in the cytoplasm of the cell in a process call glycolysis. In stage two the pyruvate molecules are transported into the mitochondria
Answer:
Venus flytrap communicate with other organisms by secreting a sugary substance (nectar) in its leaf glands.
Explanation:
The Venus flytrap is a carnivorous plant that traps insects in a plant structure that closes when the small hairs on the inside of the structure are touched.
The leaf of this plant contains a watery fluid secreted by glands on its open traps. Organisms like flies are attracted to the secreted nectar and perches on it; only for the hairs of the flytrap to get shut due to that touch and cell expansion triggered.
To determine whether an acidic or basic solution, it is first necessary to compare the concentrations of the hydronium (H3O +) and hydroxide (OH-) ions in the solution.
In acidic solution, the concentration of H3O + ions is higher than that of OH- ions.
- In acidic solution, the concentration of H3O + ions is higher than that of OH- ions. Such a solution can be achieved by adding a small part of the H3O + ions, for example. Acid solutions have a pH below 7, the further away from 7 the pH of the solution is the higher its acidity content. According to Le Chatelier's principle, when a disturbance is caused to an equilibrium system, it tends to readjust in order to diminish the effects of that force. This means that if an acid is added to water, the H3O + ions will be in excess and the equilibrium will shift in the opposite direction to the left. Then these excess ions will react with the OH- ions. Thus, the concentration of OH- ions will decrease and the solution will become acidic.
- In basic solutions, the concentration of OH- ions is higher than that of H3O + ions. If we add a base to the water, it means that we will be adding OH- ions and, as explained in the previous section, by Le Chatelier's principle, the equilibrium of the water selfionization reaction will shift in the opposite direction, and the excess ions will react. with the H3O + ions, decreasing their concentration and making the basic solution. Basic solutions have a pH greater than 7, the farther from 7 and closer to 14 the pH of the solution, the higher the basification content.
