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Answer: d. 5 m/s^2
Explanation:
Acceleration is the change in velocity in a given time.
a = (30-20)/2 = 5
Answer:
The distance is
Explanation:
From the question we are told that
The initial speed of the electron is
The mass of electron is
Let be the distance between the electron and the proton when the speed of the electron instantaneously equal to twice the initial value
Let be the initial kinetic energy of the electron \
Let be the kinetic energy of the electron at the distance from the proton
Considering that energy is conserved,
The energy at the initial position of the electron = The energy at the final position of the electron
i.e
are the potential energy at the initial position of the electron and at distance d of the electron to the proton
Here
So the equation becomes
Here are the charge on the electron and the proton and their are the same since a charge on an electron is equal to charge on a proton
is electrostatic constant with value
i.e
is the velocity at distance d from the proton = 2
So the equation becomes
Making d the subject of the formula
Answer:
Explanation:
Monosaccharides are the simplest form of carbohydrates which are called as single sugars. These are the building blocks of bigger carbohydrates.
Disaccharides are the sugars that are formed when two monosaccharides combine together by glycosidic bonds.
Polysaccharides are the long chains of carbohydrate molecules. These are formed by the monosaccharide units bonded by the glycosidic linkages.
The insulin and glucagon are the two hormones secreted by the pancreas that regulate the blood glucose levels. Insulin is secreted by the beta cells of pancreas. It is secreted when the blood glucose level is high. Glucagon is secreted by the beta cells of pancreas when the blood glucose level is low.