Answer:
Explanation:
If two objects are under the influence of equal forces, they have the same acceleration - False .
If their mass differs , their acceleration will also change.
1 )During the collision of a locomotive with a car, the car exerts an equal size force on the locomotive as the locomotive exerts on the car
True because action and reaction forces are equal.
2. True False The net force which acts on an object which maintains a constant velocity is zero
True , because if acceleration is zero , net force will be zero.
3. True False An object's velocity will change if a net force acts on the object.
True , because , if there is acceleration , there is force.
True False A bicycle initially moving at a constant velocity will slow down unless a small net force is applied
False , A bicycle initially moving at a constant velocity will not slow down
unless a small net force is applied .
Unalienable rights are the natural rights to which all people are entitled.
The right of the people to alter or to abolish government means that the government exists to serve the people.
The words "governments are instituted among men" describe the idea of a social contract.
Answer: 1 and 6, 2 and 5, 3 and 4.
<u>Explanation:</u>
The government is a system in which the power to administer or to govern the country is given to that system and divided among the different organisations of that system. There is proper division of the power so that there is no abuse of the power by the government officials.
The government of the country is for the betterment of the country and for the welfare of the people of that country. They exist for the people and therefore the people have to right to change or abolish the people. There are certain unalienable rights given to the citizens which can not be taken from them.
Answer:
DONORS: If the material for which it substitutes has more electrons than the original
ACCEPTORS: If the replacement material has fewer electrons than the original material
Fermi level: the point where the probability of finding the last electron is ½
Explanation:
When in a semiconductor material a small fraction of an element is replaced by another with different valences, an excess charge is created.
If the material for which it substitutes has more electrons than the original, there is an excess of electrons, these excess electrons are weakly bound in the material and their orbits are large, in an energy versus moment diagram their energy places them a little more below the conduction band, these materials are called DONORS.
If the replacement material has fewer electrons than the original material, one electron is missing to complete the bonds, so there is a movement of the other electrons, an easier way to analyze this movement of the (n-1) electrons is to suppose that The missing charge has a positive charge and to study its movement, this positive charge is called a hole, its binding energy is small so the orbit of the hole is large, in an energy diagram it is located a little above the band of valence, these are called ACCEPTORS
The Fermi level is defined as the point where the probability of finding the last electron is ½, when the temperature is changed the density of states of the bands changes, therefore the location point moves, but its [probability remains ½
Answer:
When balloon moves in the downward direction two forces acts on it.
i) Force exerted by air in the upward direction
ii) Weight
According to newton’s second law of motion:
Sum of forces = Ma
W – F = Ma
Mg – F = Ma …….. (i)
when some of the mass m is dropped and balloon is moving in upward direction with acceleration a/2 then,
F – W = (M-m)a/2
F – (M-m)g = (M-m)a/2
F – Mg + mg = Ma/2 – ma/2 ….. (ii)
Adding equation (i) and (ii)
mg = M(3a/2) – ma/2
m(g + a/2) = M(3a/2)
m = M(3a/2)/(g + a/2)
Answer:
B.
Explanation:
This is not true as the number of chromosomes in the daughter cells are half the number in the parent's cells
