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Potential energy is when something is not in motion but can be,(that's not a good explanation), but the second one is kinetic because it's already moving, so the first one is potential.
Answer:
3.944 x 10⁴ K.
Explanation:
Let the surface temperature of star be T in absolute scale.
Total thermal radiation from its surface can be calculated with the help of
stefan's formula as follows
E = σ A T⁴
σ is a constant called stefan's constant and is equal to 5.67x 10⁻⁸ W m⁻²K⁻⁴
A is area of surface of star and T is the surface temperature.
Putting the given values
E = 5.67 X 10⁻⁸ X 4 X 3.14 X ( 5 X 10⁸ )² X T⁴
= 1780.38 X 10⁸ T⁴
At a distance of 2.5 x 10¹³ m intensity will be calculated by dividing E with area of sphere having radius equal to distance , so
Intensity at given point
= E / 4πd²
=
= 22.68 T⁴ X 10⁻¹⁸
Putting the value of given intensity at that point
.055 = 22.68 x 10⁻¹⁸ T⁴
T⁴ = 24.25 X 10¹⁷
= 242.5 X 10¹⁶
T = 3.944 x 10⁴ K.
Gear because each spike is a wedge shape that adds a mechanical advatage
Answer:
the correct statement is the first
The law of conservation of mass indicates the same amount of carbon will be found in the reactants as in the products.
Explanation:
The law of conservation of energy establishes that the masses are not destroyed, they can only be transformed.
Therefore the mass of carbon in the reactants (CO2 and H2O) must be in the products (glucose and oxygen)
so the correct statement is the first
The law of conservation of mass indicates the same amount of carbon will be found in the reactants as in the products.