Based on the research of Albert Einstein the best way to increase energy of emitted electrons when using red light is to use a different colored light that has a higher frequency. Albert Einstein has proved that t<span>he energy of the emitted electrons depends only on the frequency of the incident light, and not on the light intensity.</span>
Answer:
the answer is c a chemical equation
The initials will still be 4 feet above the ground.
Trees do not grow from the bottom up. At the branch tips there is meristem tissue, so called the apical meristem. Trees grow in height from these apical meristems, so trees grow from the top and the initials on the bottom of the tree will stay at the same height above the ground.
Answer:
b. The step stool exerts a force on the student in the opposite direction of gravity.
c. A student exerts an upward force on the step stool equal to the gravitational force
Explanation:
It is true that gravity is the force that pulls the objects down to the earth but there are some forces that oppose the statement.
In the given situation, the student is unable to fall down from step stool is because of two forces one, the force exetred by step stool on student and two, the force exerted by the student on step stool.
The step stool exerts a force on the student in the opposite direction of gravity that gives stability to the step stool and an upward force on the step stool equal to the gravitational force helps the student to climb the stool.
Hence, the correct option are b and c.
Our solar system has one and nearly nine planets in total. The inner planets distance from the sun is relatively closer which in advantage receives solar radiation and heat from the sun more and since these planets are closer to the sun their revolution is shorter as they are nearer to it.
According to most studies Venus and Mars were the planets that had possibly incurred life and such planets which have the same leverage as the earth could have sustain and provide lief yet many researchers and astrophysicists suggest that because of the weak atmosphere these plants possess, it has caused them to be more susceptible to the sun's extreme radiation and ultraviolet rays that caused its atmosphere to become thinner and finally was eradicated penetrating the sun's heat unto the surface and absorbing and declining the resources for life.