I would say that there shouldn't be any calls on a plane while in-flight because you never know what someone is calling for. It can lead to a bad situation like 9/11 or any form of terrorism.
Answer:
20.05 seconds
Explanation:
Given that:
v² = u² + 2as
v = final velocity
u = initial velocity
a = acceleration
s = distance
a = negative acceleration = - 0.43
s = distance = 86.5
v = 0
0 - 2(0.43)(86.5) = u²
74.39 = v²
U = sqrt(74.39)
U = 8.6249
From ;
t = Time in seconds
t = (v - u) / a
t = (0 - 8.6249) / - 0.43
t = 20.057
This reaction would be classified as a double displacement or replacement reaction. This is because the atoms/groups of atoms within each compound are swapped or have broken bonds and reformed with other atoms/groups, where each of them has been replaced with their counter metal or nonmetal in the equation.
7.5 seconds ? i strongly think that’s right i’m sorry if it get wrong
Answer:
4.55 m/s
Explanation:
The frequency is defined as the number of rotations in one second
So, f = 2.03 Hz
r = 0.357 m
The tangential speed is
v = r ω = r x 2 x 3.14 x f = 0.357 x 2 x 3.14 x 2.03 = 4.55 m/s
