Answer:
I may be a little late, but it's A i got it right on the exam
Explanation:
Answer:
(D) It is stronger when the objects are closer.
Explanation:
Newton's universal law 9f gravitation
To solve this problem we apply the thermodynamic equations of linear expansion in bodies.
Mathematically the change in the length of a body is subject to the mathematical expression

Where,
Initial Length
Thermal expansion coefficient
Change in temperature
Since we have values in different units we proceed to transform the temperature to degrees Celsius so


The coefficient of thermal expansion given is

The initial length would be,

Replacing we have to,




This means that the building will be 35.5cm taller
Ans: The thin strands are called as yarns which are made from fibre. Spinning is the process of making yarn. The process where the cotton wool are drawn out and being twisted. This process brings all the fibre together to form a yarn.
Mercury a terrestrial. It isn't made of gas.