def gPotential():
print("Gravitational Potential")
m1 = input("Mass of the first object m1> ")
if mPlanet(m1) is False:
try:
m1 = float(m1)
except ValueError:
m1 = numeric(m1)
else:
m1 = mPlanet(m1)
m2 = input("Mass of the second object m2> ")
if mPlanet(m2) is False:
try:
m2 = float(m2)
except ValueError:
m2 = numeric(m2)
else:
m2 = mPlanet(m2)
r = input("Distance between two objects> ")
try:
r = float(r)
except ValueError:
r = numeric(r)
U = G * m1 * m2 / (r)
print("gravitational potential energy U =", U)
log_str = "gravitational potential energy U =" + str(U)
logger(log_str)
pause()
return U
def gForce():
print("Gravitational Force")
m1 = input("Mass of the first object m1> ")
if mPlanet(m1) is False:
try:
m1 = float(m1)
except ValueError:
m1 = numeric(m1)
else:
m1 = mPlanet(m1)
m2 = input("Mass of the second object m2> ")
if mPlanet(m2) is False:
try:
m2 = float(m2)
except ValueError:
m2 = numeric(m2)
else:
m2 = mPlanet(m2)
r = input("Distance between two objects> ")
try:
r = float(r)
except ValueError:
r = numeric(r)
F = G * m1 * m2 / (r * r)
print("Force of gravity F=", F)
log_str = "Force of gravity F=", str(F)
logger(log_str)
pause()
return F
def parallelCapacitors():
num_C = input("Number of series capacitors> ")
try:
num_C = int(num_C)
except ValueError:
print("Please enter an integer value.")
parallelCapacitors()
C_eq = 0
for x in range(num_C):
print("Enter the capacitance value of capacitor [", x + 1, "]")
C_n = input("> ")
try:
C_n = float(C_n)
except ValueError:
C_n = numeric(C_n)
C_eq += C_n
print("Equivalent capacitance C = ", C_eq)
log_str = "Equivalent capacitance C = " + str(C_eq)
logger(log_str)
pause()
return C_eq
def seriesResistors():
num_R = input("Number of series resistors> ")
try:
num_R = int(num_R)
except ValueError:
print("Please enter an integer value.")
seriesResistors()
R_eq = 0
for x in range(num_R):
print("Enter the resistance value of Resistor [", x + 1, "]")
R_n = input("> ")
try:
R_n = float(R_n)
except ValueError:
R_n = numeric(R_n)
R_eq += R_n
print("Equivalent resistance R = ", R_eq)
log_str = "Equivalent resistance R = " + str(R_eq)
logger(log_str)
pause()
return R_eq
def seriesInductors():
num_L = input("Number of series inductors> ")
try:
num_L = int(num_L)
except ValueError:
print("Please enter an integer value.")
seriesInductors()
L_eq = 0
for x in range(num_L):
print("Enter the capacitance value of inductors [", x + 1, "]")
L_n = input("> ")
try:
L_n = float(L_n)
except ValueError:
L_n = numeric(L_n)
L_eq += L_n
print("Equivalent inductance L = ", L_eq)
log_str = "Equivalent inductance L = " + str(L_eq)
logger(log_str)
pause()
return L_eq
def var_filler():
for i in range(len(var_list)):
print("Enter a value for ", var_list[i][1])
var_list[i][0] = input("> ")
try:
var_list[i][0] = float(var_list[i][0])
except ValueError:
var_list[i][0] = numeric(var_list[i][0])
def transition():
print("Photoelectric Effect")
n_i = input("Initial orbit number ni> ")
try:
n_i = int(n_i)
except ValueError:
n_i = numeric(n_i)
n_f = input("final orbit number nf> ")
try:
n_f = int(n_f)
except ValueError:
n_f = numeric(n_f)
Z = input("Atomic Number of the element> ")
try:
Z = int(Z)
except ValueError:
Z = numeric(Z)
i = 1 / (n_i**2)
f = 2 / (n_f**2)
wav = R_d * (i - f) * Z**2
wav = 1 / wav
print("Transition Wavelength l= ", wav)
print("EM spectrum:", EMspectrum(wav))
f = c / wav
print("Corresponding frequency f =", f)
E = h * f
print("Energy of the photon E =", E)
log_str = "Transition Wavelength l= " + str(wav) + "\n" \
" " + "EM spectrum:" + str(EMspectrum(wav)) + "\n" \
" " + "Corresponding frequency f =" + str(f) + "\n" \
" " + "Energy of the photon E =" + str(E)
logger(log_str)
pause()
return wav
def dragForce():
print("Drag Force")
Cd = input("Drag coefficient>")
if Cd not in Cd_dict:
try:
Cd = float(Cd)
except ValueError:
Cd = numeric(Cd)
elif Cd in Cd_dict:
Cd = Cd_dict[Cd]
A = input("Frontal surface area> ")
try:
A = float(A)
except ValueError:
A = numeric(A)
p = input("Medium density> ")
try:
p = float(p)
except ValueError:
p = numeric(p)
v = input("Velocity> ")
try:
v = float(v)
except ValueError:
v = numeric(v)
F_d = 0.5 * Cd * p * v * v * A
print("Drag force Fd = ", F_d)
log_str = "Drag force Fd = " + str(F_d)
logger(log_str)
pause()
return F_d
def terminalVelocity():
print("Terminal Velocity")
m = input("Mass of the object> ")
try:
m = float(m)
except ValueError:
m = numeric(m)
Cd = input("Drag coefficient>")
if Cd not in Cd_dict:
try:
Cd = float(Cd)
except ValueError:
Cd = numeric(Cd)
elif Cd in Cd_dict:
Cd = Cd_dict[Cd]
A = input("Frontal surface area> ")
try:
A = float(A)
except ValueError:
A = numeric(A)
p = input("medium density> ")
try:
p = float(p)
except ValueError:
p = numeric(p)
v_term = sqrt((2 * m * a_g) / (Cd * p * A))
print("Terminal velocity v = ", v_term)
log_str = "Terminal velocity v = " + str(v_term)
logger(log_str)
pause()
return v_term
def idealGas():
P = 0
V = 0
T = 0
n = 0
var_list = [[P, "pressure"], [V, "volume"], [T, "temperature"],
[n, "moles number"]]
print("Select a variable to solve for> ")
print("[1] - pressure (P)")
print("[2] - volume (V) ")
print("[3] - temperature (T)")
print("[4] - number of moles (n)")
select = input("Enter the number of your selection> ")
try:
select = int(select)
except ValueError:
select = numeric(select)
result_name = var_list[select - 1][1]
del var_list[select - 1]
def var_filler():
for i in range(len(var_list)):
print("Enter a value for ", var_list[i][1])
var_list[i][0] = input("> ")
try:
var_list[i][0] = float(var_list[i][0])
except ValueError:
var_list[i][0] = numeric(var_list[i][0])
if select == 1:
P = Symbol('P')
var_filler()
result = solve(
var_list[2][0] * R * var_list[1][0] - P * var_list[0][0], P)
elif select == 2:
V = Symbol('V')
var_filler()
result = solve(
var_list[2][0] * R * var_list[1][0] - var_list[0][0] * V, V)
elif select == 3:
T = Symbol('T')
var_filler()
result = solve(
var_list[2][0] * R * T - var_list[0][0] * var_list[1][0], T)
elif select == 4:
n = Symbol('n')
var_filler()
result = solve(
n * R * var_list[2][0] - var_list[0][0] * var_list[1][0], n)
else:
print("Please enter a valid selection")
idealGas()
print("Value for", result_name, "=", result)
log_str = "Value for " + str(result_name) + "=" + str(result)
logger(log_str)
pause()
return result