from __future__ import division
u=(10)*(1.0)*3600 #in Joules
c=3*10**8 #in m/sec
t=3600 #in sec
print("(A) Energy reflected from mirror in joule=",u)
p=(2*u)/c
print("Momentum after 1 hr illumination in kg-m/sec= %.5f"%p)
f=p/t
print("(B) Force in newton= %.3e"%f)
from __future__ import division
theta=1/1440
c=3*10**8 #in m/sec
l=8630 #in m
w=(c*theta)/(2*l)
print("Angular speed in rev/sec= %.5f"%w)
from __future__ import division
l=15.6 #in cm
n=8
lambda_g=(2*l)/n
print("Lambda_g in cm=",lambda_g)
lamda=3.15 #in cm
f=9.5*10**9 #cycles/sec
c=lamda*f
print("Value of c in m/sec= %.3e"%c)
from __future__ import division
v_1=25000 #miles/hr
u=25000 #miles/hr
c=6.7*10**8 #miles/hr
x=1+((v_1*u)/(c)**2)
v=(v_1+u)/x
print("Speed of light in miles/hour= %.0f"%v)