Answer:
The planet moves faster when closer to the Sun and slower when it is far from it
Explanation:
The law of planetary motion that answers to this question is the 2nd Kepler's law, which states that:
"A line connecting the centre of the Sun to the centre of each planet sweeps out equal areas in equal time intervals"
In order to understand what are the consequence of this law to the orbital velocity of each planet, we have to keep in mind that planets have an elliptical orbit, with the Sun occupying one of the two focii (Kepler's 1st law).
As a result, the planet at some point of the orbit is farther from the Sun, while at some point is closer to it.
Given to Kepler's second law, this means that when the planet is farther, the orbital velocity must be lower (because the line connecting the planet to the Sun is longer, so it can cover the same area moving less), while when the planet is closer to the Sun, the orbital velocity must be higher (because the line connecting the planet to the Sun is shorter, so it will cover less area if moving at the same speed.
During photosynthesis, plants take in water and carbon dioxide and absorb light energy. Plants use the light energy captured by chlorophyll to help form glucose molecules. Glucose molecules store energy.To use this energy,a plant cell needs its mitochondria to break down the glucose.This process of breaking down food molecules to get energy is called cellular respiration.During cellular respiration,cells use oxygen to break down food molecules.Like all cells, plant cells then use the energy from food to do work
Answer:
Red blood cells live about 120 days, and platelets live about 6 days. Some white blood cells live less than a day, but others live much longer.
Explanation:
Answer:
Ophthalmoscopy is also known by the name funduscopy is used to look into the different eye structure especially in the fundus region. This is involved in the normal physical examination.
During the examination, the complete information about vitreous humor, retins and discs can be understood by opthalmoscopy. The individual have any problem in the eye and its cure can be done by the ophthalmologist. In case of any eye emergency the individual must go for theopthalmoscopy.