Answer:
It is True
Explanation:.
A commander assigns a zone reconnaissance mission when he seeks additional information on a zone before committing other forces in the zone. It is appropriate when the enemy situation is vague, existing knowledge of the terrain is limited, or combat operations have altered the terrain. A zone reconnaissance could include several route or area reconnaissance missions assigned to subordinate units.
I'm sorry if this is wrong but I think it's 2.5 net
(a) 7.9 s
The period of a wave is time that passes between two consecutive crests (or two consecutive troughs).
In this case, we are told that five crests pass in a time of 39.5 s. Therefore we can find the period by using the proportion:
Where T is the period. Re-arranging the equation, we find
(b) 0.127 Hz
The frequency of a wave is equal to the reciprocal of the period:
where
f is the frequency
T is the period
For this wave, we have T = 7.9 s, so its frequency is
(c) 37.9 m
The wavelength of a wave is the distance between two consecutive crests (or two consecutive troughs). For this wave, the distance between two successive crests is 37.9 m, so the wavelength of the wave is
(d) 4.81 m/s
The speed of a wave is given by
where
is the wavelength
f is the frequency
For the wave in the problem, we have
Therefore, the speed of the wave is
Answer:
Ei = 40J
Explanation:
Given the following data;
Efficiency = 50%
Energy output, Eo = 20 J
To find the amount of energy used by the mixer:
Efficiency = Eo/Ei * 100
Where;
Eo is the output energy.
Ei is the input energy.
Substituting into the formula, we have;
50 = 20/Ei * 100
Cross-multiplying, we have;
50Ei = 2000
Ei = 2000/50
Ei = 40J
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