Answer:
48m
Explanation:
Vi=12 m/s
t=4s
X is equal to Vit
so your range would be (12)(4)
= 48 m
Answer:
The horizontal distance traveled by the rock from the wall after 2 seconds is 6m.
Explanation:
Given;
initial speed of the rock, u = 3 m/s
height of the wall, h = 25 m
time of travel, t = 2 seconds
The horizontal distance is determined as follows;
X = ut + ¹/₂gt²
where;
g is acceleration due to gravity, horizontal distance is not affected by gravity, g = 0
X = ut
X = 3 x 2
X = 6 m
Therefore, the horizontal distance traveled by the rock from the wall after 2 seconds is 6m.
Determine the efficiency, heat transfer rate, and effectiveness of each fin.
Answer:
The efficiency of fin is 64.2%,
heat transfer rate 543.03W and
effectiveness of each fin is 21.67.
Explanation:
See the explanation in the attached files.
Vf=vi-gt. vf =0-9.8*2= 19.6 m/s
Alcohol risk that one is hard to answer sorry if i wasn't much help
