Answer:
D) Einstein proved it is impossible to have a redshift greater than 1; these are all due to gravitational lensing tricking us
Explanation:
By Einstein's theory of relativity the maximum value of the red shift is 1. This correspond to a case in which the observed frequency equals the emitted frequency:
in other cases the red shift is lower than one.
Hence, the gravitational lens change the measurements of the observed frequency and because of that we calculate a greater red shift.
Hence, the answer is:
D) Einstein proved it is impossible to have a redshift greater than 1; these are all due to gravitational lensing tricking us
hope this helps!!
The top of the wavelength is called the crest.
p=mv so wouldn't u multiply them?
Answer:
Young's modulus of this tendon is .
Explanation:
Given that,
Length of the tendon, l = 19 cm
It is stretched by 4.5 mm,
Force, F = 11.3 N
Average diameter, d = 8.2 mm
Radius, r = 4.1 mm
The formula of Young's modulus of this tendon is given by :
So, the Young's modulus of this tendon is . Hence, this is the required solution.
Jupiter, Saturn, Uranus and Neptune are the jovian planets.
Mercury, Venus and Earth<span> are the terrestrial planets.
</span>One of the main differences that can be seen between terrestrial and jovian planets, is their surfaces. While the terrestrial planets are made of solid surfaces, the jovian planets are made of gaseous surfaces.
The jovian planets are less dense compared to the terrestrial planets, because they are mainly composed of hydrogen gas. Moreover, the core of the jovian planets is more dense than the terrestrial planets.<span>
</span>So, <span>Terrestrial planets are mainly composed of _____solid surfaces_______ while jovian planets are made dominantly of __gaseous______.</span>