jason paints 1/4 of the area of his living room walls on Monday = Wi =1/4
On Tuesday, he paints twice as much as he painted on Monday=Wf=2Wi
=Wf =2 X 1/4
= Wf = 1/2
total painted area =W(TOTAL)= Wi+Wf =1/4 + 1/2 =1/2
reaining painted area = W =1 - 1/4 - 1/2 = 1/4
Answer:
the speed of the first spacecraft as viewed from the second spacecraft is 0.95c
Explanation:
Given that;
speed of the first spacecraft from earth v = 0.80c
speed of the second spacecraft from earth v = -0.60 c
Using the formula for relative motion in relativistic mechanics
u' = ( v - v ) / ( 1 - (vv / c²) )
we substitute
u' = ( 0.80c - ( -0.60c) ) / ( 1 - ( ( 0.80c × -0.60c) / c² ) )
u' = ( 0.80c + 0.60c ) / ( 1 - ( -0.48c² / c² ) )
u' = 1.4c / ( 1 - ( -0.48 ) )
u' = 1.4c / ( 1 + 0.48 )
u' = 1.4c / 1.48
u' = 0.9459c ≈ 0.95c { two decimal places }
Therefore, the speed of the first spacecraft as viewed from the second spacecraft is 0.95c
There is not enough information given tl be able to solve this problem
Answer:
d = m× λ⇒ d = λ ×m×l / x
= 630× m × 3×3m/ 45× m
= 1.26×m
Explanation:
the above calculation is based on Young’s double slit experiment where the two slits provide two coherent light sources which results either constructive interference or destructive interference when passing through a double slit.