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Answer:
diagram: see image, x-component: 84.3 N, acceleration: 4.38 m/s^2
Explanation:
(see image for further explanation)
Answer:
D). 
Explanation:
As we know that temperature scale is linear so we will have

now we have

so the relation between two scales is given as

now we know that in kelvin scale the absolute temperature is 600 K
so now we have

so correct answer is
D). 
Parallax of the stars is created by :
B. Different locations of Earth in its orbit
Parallax refer to the position of an object (in this case, a star) that will look different if we view it from different positions
hope this helps