Answer:
sixteen hours and six minutes
Explanation:
W=Fd
W is work
F is force in newtons
D is displacement in meters
W= 25 x 3
W= 75Nm
The answer is refraction. When a wave from one medium enters another medium, its direction changes due to the change of speed (phase velocity changes but frequency remains the same). The wave slows down when it enters a denser medium from the one it came from hence its path seems to bend.
The correct symbol is 4He. You may also encounter it displayed as helium-4, He-4.
Number one- the pendelum slowly reduces energy and eventually loses everything and will stand still.
Number two- I can account due to the factor of it repeating the same result