I think the main idea is that the middle planets have a solid inner core and that they all could have life on them
Earth's inner core is solid even though the temperature is so high because the pressure is also very high.
Hope this helped:)
Answer:
Explanation:
This is a problem based on interference pf light waves.
wavelength of light λ = 553 nm
slit separation d = .134 x 10⁻³ m
screen distance D = 4.5 m
for fourth order bright fringe, path- length difference = 4 x λ
= 4 x 553
= 2212 nm .
= 2.212 μm
Answer:
480.2 m
Explanation:
The following data were obtained from the question:
Speed of sound (v) = 343 m/s.
Time (t) = 2.8 s
Distance (x) of the cliff =?
The distance of the cliff from the woman can be obtained as follow:
v = 2x /t
343 = 2x /2.8
Cross multiply
2x = 343 × 2.8
2x = 960.4
Divide both side by the coefficient of x i.e 2
x = 960.4/2
x = 480.2 m
Therefore, the cliff is 480.2 m away from the woman.
Answer:
<h2>The answer is 30 s</h2>
Explanation:
The time taken can be found by using the formula
v is the velocity
a is the acceleration
From the question we have
We have the final answer as
<h3>30 s</h3>
Hope this helps you
