Answer:
electric field is 4.75 × 
V/m
Explanation:
given data
cube of side = 1 mm
energy = 10 J
to find out
magnitude of the electric field
solution
to find electric field
we will apply here energy formula that is
energy = 1/2 × ∈ × E² × volume ...............1
here we know ∈ = 8.85 × 
so put all value to get E electric field
energy = 1/2 × ∈ × E² × volume
10 = 1/2 × 8.85 × × E² × (1/1000)³
solve it and get E
E² = 2× 10 / 8.85 × × (1/1000)³
E = 4.75 ×
so electric field is 4.75 × V/m
90 degrees - 30 = 60 degrees
Velocity = (5m/s - 4.35m/s x cos(30)) / cos(60)
Velocity = 2.47 m/s
The answer is D) 2.47 m/s at 61.9 degrees
Answer:
Hund's rule
Explanation:
Hund's rule is defined as the rule whose first rule in the chemistry says that, for a given electronic configuration, the term which posses lowest energy has maximum multiplicity. The multiplicity is defined as the tem 2S+1, where S is the total spin angular momentum.
Therefore, the term which has lowest energy that term posses maximum number of S.
Hund's rule of maximum multiplicity: Electron present in same energy orbitals firstly they completed half orbit than start pairing.
Therefore, the energy of lowest configuration for an atom is the one having the maximum number of unpaired electron which is allowed by the Pauli principle in a particular set of degenerate orbit is called Hund's rule.
temperature decreases at higher altitudes because as air rises the pressure decreases.
Answer: a)5.73 *10^-6 C/m^2; b)648*10· N/C c)56.5 *10^3 Nm^2/C
Explanation: Considering the definition of surface charge density as:
σ = Q/ area of sphere
so Q = σ * 4*π* R^2outer
The new Q at the outer radius is: Q initial -0.5 microC =5 micro C
The Electric with the new outer charge is equal to:
E= k*Q / R^2outer= 9 10^9* 5 microC/(0.25m)^2= 648*10^3 N/C
Finally the flux corresponding to the internal charge is equal to
By using Gauss law, the total flux is equal to net change divided ε0
so this is 0.5 microC/ ε0= 56.5 *10^3 Nm^2/C
