Answer:
n = 2r³/Rd²
Explanation:
See the attached file for the derivation.
Answer:
64.11% for 200 days.
t=67.74 days for R=95%.
t=97.2 days for R=90%.
Explanation:
Given that
β=2
Characteristics life(scale parameter α)=300 days
We know that Reliability function for Weibull distribution is given as follows

Given that t= 200 days

R(200)=0.6411
So the reliability at 200 days 64.11%.
When R=95 %

by solving above equation t=67.74 days
When R=90 %

by solving above equation t=97.2 days
Answer:
Explanation:
ok is this multiple choice if so plz provide that and ill answer again
Answer:
Explanation:
Given
emmisivity of spacecraft 
absorptivity 
Solar radiation incident 
heat Absorbed by spacecraft is

where
Surface area of Sphere


Radiation emitted by spacecraft

When the radiation emitted equals to the solar energy absorbed


