Investigate means to search for something or look in to something
Sound is an example of a longitudinal wave.
Explanation:
Using Newtons second law on each block
F = m*a
Block 1

Block 2

Block 3

Solving Eq1,2,3 simultaneously
Divide 1 and 2

Put Eq 4 into Eq3

Put Eq 5 into Eq2 and solve for a

Substitute back in Eq2 and use Eq4 and solve for T2 & T1

Answer:
nice to help you
Explanation:
If for any reason the Sun shrank smaller than the Earth, this shrunken Sun wouldn't have the mass to create fusion and would burn out completely. Our solar system would lose its only star. ... Earth's mass would be at least 333,000 times bigger than it is now. Imagine the gravity that planet would have.