"A decorative stone fell off the fence. Considering the presence of air, how does the kinetic energy (K) of the stone just before striking the ground compare to its potential energy (U) on the fence? a. K is equal to U. b. K is greater than U. c. K is less than U. d. It is impossible to tell." Answer: b. Kinetic Energy is greater than Potential Energy. Just before the decorative stone hits the ground, it will have a greater kinetic energy than its potential energy. Review: Before anything else, we need to understand the concepts of kinetic energy and potential energy. Kinetic energy is the work that an object needs to have in order for it to be in action or to accelerate. Basically, kinetic energy is the object's energy triggered by its motion in three dimensional space. The energy is collected through its acceleration and secures its magnitude until a change of speed happens. The kinetic energy of an object will be set to zero once it is put into rest; ...
name all the organ systems that you would use for walking from the front of your school to your first period class Answer: skeletal sytem muscular system circulatory system respiratory system Explanation: skeketal system is needed when you walk since the muscles which enable you move are attached to the skeletal system. muscular system is the main system used for movement through its ability to contract. circulatory system is also needed since this distributes the needed nutrients for energy to be utilized for movement. respiratory system to provide oxygen which ia important to burn nutrients in order to release energy and it also brings waste materials like CO2 to organs reponsible for waste diposal
"Which of the following materials are cycled out by the chloroplast and mitochondrion? a. Carbon dioxide, water, oxygen, and ATP b. Carbon dioxide, water, sugar and oxygen c. Sugar, water, oxygen, and ATP d. Sugar, water, sunlight, and oxygen " Answer: b. Carbon dioxide, water, sugar, and oxygen. Explanation: The principal operate on an organelle is to perform them metabolic process, which implies to require energy from organic sources and alter it to a type that the remainder of the cell can use. The principal operate of a plastid is to perform them chemical process, which implies to capture lightweight energy and store it during a type thats usable by the remainder of the cell. Mitochondria are found in animal cells. The plant equivalent of this "energy factory" is that the plastid. A plastid is an organelle area unit like as a result of each building energy from sugar. These are the description of the following functions of the endoplasmic retic...
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