I think the answer would be d. polarized. "<span>Polarized </span>light waves<span> are </span>light waves<span> in which the </span>vibrations<span> occur in a </span>single<span> plane. The process of transforming unpolarized </span>light<span> into polarized </span>light<span> is </span>known<span> as polarization."</span>
Kinetic friction happens when there is kinetic energy and it is coming into contact with another source. ex: a ball rolling.
Average speed = (total distance covered) / (time to cover the distance)
Ian's total distance covered = (2km + 0.5km + 2.5km) = 5 km.
His time to cover the distance = 3 hours.
Average speed = (5 km) / (3 hrs)
Average speed = (5/3) (km/hr)
<em>Average speed = 1.67 km/hr</em>
As for me, there are two suitable answers for the question represented above and here is a short explanation why I consider these two to be correct :
D. The horizontal velocity of the projectile and <span>B. The length of time before it lands
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-- this led me to answers! Hope everything is clear! Regards!<span>
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