Answer:
The expression for the time taken by an object to move with a speed at some distance is,
t=<u> </u><u>d</u><u>/</u><u>v</u>
Here, t is the time taken by the opponent to react, d is the length of the court, andis the speed of the ball.
Explanation:
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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.
Learn more about gibbs free energy
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Answer:
E=0.284 N/C
Explanation:
Given that
Distance ,d= 1.3 cm = 0.013 m
Time ,t
Initial velocity of electron u=0 m/s
We know that
We know that
mass of electron,m
Charge on electron
F= m a=E q
So
E=0.284 N/C
Electric field will be 0.284 N/C.
Both mass and weight would change
Answer:
a) F = 1.70 10⁻⁹N, F = 1.47 10⁻⁸ N,
b) * the electronegative repulsion, from the repulsion by quantum effects
Explanation:
a) The atraicione force comes from the electric force given by Coulomb's law,
F =
divalent atoms
In this case q = 2q₀ where qo is the charge of the electron -1,6 10⁻¹⁹ C and the separation is given
F = k q² / r²
F =
F = 1.70 10⁻⁹N
monovalent atoms
in this case the load is q = q₀
F = 2 \ 10^9 \ \frac{ (1.6 \ 10^{-19} )^2}{ (0.125 10^{-9} )^2 }
F = 1.47 10⁻⁸ N
b) repulsive forces come from various sources
* the electronegative repulsion of positive nuclei
* the electrostatic repulsion of the electrons when it comes to bringing the electron clouds closer together
* from the repulsion of electron clouds, by quantum effects