Answer:
169/4 ft/min.
Explanation:
See the attached picture.
Answer:
90 m
Explanation:
Acceleration,
where v and u are final and initial velocities respectively, t is the time taken
Substituting
for a, 4 m/s for u and 10 s for t then
1*10=v-4
v=14 m/s
From kinematic equations

Making s the subject then

Answer: Visible light makes up 35% of natural light.