Answer:
Multiple choice answer would be "None"
Explanation:
White dwarfs are radiating stored heat from earlier reactions.
Technically, it would be the last fusion stage the star went through
BEFORE it became a white dwarf, but that's nit-picking.
Answer:
Gravitational potential energy to kinetic energy
Explanation:
In this case you have a case about conservation of energy.
When the mass is released and allowed to fall, its energy is completely gravitational potential energy with a value of U = mgh. m is the mass, g is the gravitational constant and h is the height to the floor from the mass.
While the mass is falling down part of its potential energy converts to kinetic energy of value K=1/2mv^2, because the mass has been acquiring more and more velocity.
Thus, the kinetic energy is increasing while the potential energy is decreasing.
When the mass is just above the floor (the moment just before the mass hits the floor) all its potential energy has been converted to kinetic energy.
Then, you have that the kinetic energy of the mass when the mass is just above the floor, is equal to the potential energy when the mass is at height of h. That is:
This is how the law of conservation of energy is fulfilled.
Answer: Economic models<em><u> </u></em><u><em>are simplifications of reality, and in this respect economic models are no different from other scientific models.</em></u>
These are abstract idea corresponding to processes set in an economy, these are usually denoted by variables and quantitative relationships between them. These are a simplified, often numerical, hypothesis studied to elaborate convoluted processes.
<u><em>Therefore the correct option is (c)</em></u>
Answer:
<em>The</em><em> </em><em>Refere</em><em>nce</em><em> </em><em>standard</em><em> </em><em>with</em><em> </em><em>which</em><em> </em><em>we</em><em> </em><em>carry</em><em> </em><em>out</em><em> </em><em>the</em><em> </em><em>measurement</em><em> </em><em>of</em><em> </em><em>any</em><em> </em><em>physical</em><em> </em><em>quantity</em><em> </em><em>of</em><em> </em><em>the</em><em> </em><em>same</em><em> </em><em>kind</em><em> </em><em>is</em><em> </em><em>know</em><em> </em><em>as</em><em> </em><em>unit</em><em> </em><em>.</em>
<em><u>I</u></em><em><u> </u></em><em><u>HOPE</u></em><em><u> </u></em><em><u>I</u></em><em><u> </u></em><em><u>HELP</u></em><em><u> </u></em><em><u>YOU</u></em><em><u>.</u></em>
Answer:
The acceleration is 5 m/s2.
Explanation:
We calculate the acceleration, with the data of mass and force, through the formula:
F= m x a ---> a= F/m
a= 200 N/40 kg 1N= 1 kg x m/s2
a= 200 kg x m/s2/ 40 kg
<em>a= 5 m/s2</em>