The units of pressure are called derived units because it is derived from base unit, which is distance and a derived unit which is force. Force is derived from acceleration, a derived unit as well, and mass, a base unit; which makes it a derived unit.
Answer:
Velocity is 3.02 m/s at an angle of 53.13° below X-axis.
Explanation:
Let unknown velocity be v.
Here momentum is conserved.
Initial momentum = Final momentum
Initial momentum = m x 6i + m x 0i = 6m i
Final momentum = m x (4.8cos 30 i + 4.8sin 30 j) + m x v = 4.16 m i + 2.4 m j + m v
Comparing
4.16 m i + 2.4 m j + m v = 6m i
v = 1.84 i - 2.4 j
Magnitude of velocity
Direction,
Velocity is 3.02 m/s at an angle of 53.13° below X-axis.
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The standard gibbs free energy of formation of <u>i2 (s)</u> is zero.
<h3 /><h3>Definition of gibbs free energy</h3>
The maximum amount of work that can be accomplished by a thermodynamically closed system at constant temperature and pressure can be calculated using the Gibbs free energy, a thermodynamic potential. Furthermore, it offers a prerequisite for any processes, like chemical reactions, that might take place in such circumstances.
The Gibbs free energy change (measured in joules in SI) is the maximum non-expansion work that can be extracted from a closed system (one that can exchange heat & work with its surroundings but not matter) at fixed temperature & pressure. Only a completely reversible mechanism is able to reach this maximum.
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