None of the choices is a force. 'a' and 'b' are speeds. 'C' and 'd' are accelerations. ... The steady force of gravity is 9.8 newtons PER KILOGRAM of mass. ... The question is written by someonewho very much wants to discourage anyone interested in Physics.
An angle of refraction of 90-degrees
Answer:
8
Explanation:
Groups go down, periods go across :)
1 because the the mid night summer is dark
