system of two charge has positive potential energy.This signifies that a) Both charge are positive quad b) Both charge are negative c) Both charge are positive or Both charge are negative d) One charge is positive and the other is negative.
Answers
Answer:
The follicular phase of the female menstrual cycle includes the maturation of ovarian follicles to prepare one of them for release during ovulation. During the same period, there are concurrent changes in the endometrium, which is why the follicular phase is also known as the proliferative phase.
Issues of Concern
Follicular Phase
The duration of the menstrual cycle varies and occurs every 21 to 35 days, with an average span of 28 days. Oligomenorrhea describes infrequent menstrual periods and cycles lasting more than 35 days. Polymenorrhea refers to frequent menstrual periods and cycles lasting less than 21 days. It is important to note that the duration of the follicular phase can differ depending on the length of the cycle, while the luteal phase is usually stable and lasts 14 days. Based on a 28-day cycle, the follicular phase measures from the first day of menstruation (day 0) until the beginning of ovulation (day 14). When the previous menstrual cycle completes, and the corpus luteum breaks down, the levels of estrogen, progesterone, and inhibin A will decrease. This chain of events will cause positive feedback to the hypothalamus and anterior pituitary, and a subsequent pulsatile release of GnRH and FSH into circulation. This increase in FSH will stimulate the granulosa cells of the ovaries to recruit several follicles from each ovary. These follicles will complete maturation, and only one Graafian follicle will go through ovulation during that cycle. The increase in FSH also stimulates the secretion of Inhibin B by the granulosa cells. Inhibin B will eventually blunt the secretion of FSH toward the end of the follicular phase. Inhibin B levels will be highest during the LH surge before ovulation, and will quickly taper off after.[1][2]
Answer:
It indicated that both are positive.
Explanation:
The potential energy is positive if the two charges are of the same type, positive or negative, and negative if the two charges are of the opposite type. This makes sense when considering the change in potential energy ΔU as the two charges move closer to or further away from each other. Depending on the relative type of charges, you may need to work on the system. Otherwise, the system will work.
In other words, the work will be positive or negative. If the system needs to do the positive task of "actually bringing the charges closer", the energy of the system should increase. Bringing two positive or two negative charges closer together has to do a positive job in the system, increasing potential energy. Potential energy is proportional to 1 / r, so if r decreases between two positive or two negative charges, the potential energy increases.
On the other hand, bringing positive and negative charges closer together has to do negative work in the system. That is, the charge attracts you. That is, it extracts energy from the system. This reduce potential energy. Potential energy is negative for positive and negative charge pairs, so increasing 1 / r makes the potential energy more negative. This is the same as reducing potential energy.
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