Answer:
Speed of a child on the rim is 4.25 m/s.
Explanation:
Given;
diameter of the merry-go-round, d = 5.0 m
period of the motion, t = 3.7 s
one complete rotation of the merry-go-round = πd
one complete rotation of the merry-go-round = π(5) = 15.71 m
Speed is given as distance / time
speed of a child on the rim = 15.71 / 3.7
speed of a child on the rim = 4.25 m/s
Therefore, speed of a child on the rim is 4.25 m/s.
<span>is a formula used to describe the relationship between the angles of incidence and refraction, when referring to light or other waves passing through a boundary between two different isotropic media, </span>
The acceleration of gravity on Pluto is 0.62 m/s² .
The acceleration of gravity on Earth is 9.81 m/s² .
Earth's gravity is (9.81/0.62) = 15.8 times as strong as Pluto's gravity.
So any object that weighs 2.7N on Pluto would weigh
(2.7N) x (15.8) = 42.7 N on Earth .
42.7 Newtons = about 9.6 pounds .
they can be called polar covalents