Answer:
A notebook because they can take notes of what they have learned
Explanation:
Answer:
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Explanation:
1. Fall time
<u>i) Find the vertical speed of the plane when the tanks were released</u>

That is the same initial vertical speed of the tanks.
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<u>ii) Find the fall time</u>




Only the positive value has aphysical meaning: t = 2.26 seconds.
2. Speed when they hit the ground
<u>i) The horizontal speed is constant:</u>

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<u>ii) The vertical speed is:</u>


<u>iii) Total speed</u>


Answer:
A capacitor is an electronic component that stores and releases electricity in a circuit. It also passes alternating current without passing direct current. A capacitor is an indispensible part of electronic equipment and is thus almost invariably used in an electronic circuit.
The correct answer to the question is: Sound wave.
EXPLANATION:
Before going to answer this question, first we have to understand longitudinal wave.
A longitudinal wave is a mechanical wave in which the direction of propagation of wave is parallel to the direction of particle vibration.
This wave propagates through a medium in the form of compression and rarefaction.
Compression are the regions of high pressure zones where the particles of the medium are closely aggregated to each other.
Rarefaction is the region of low pressure where particles of the medium are not so close to each other as compared to compression.
The longitudinal wave can not propagate in space. It always needs a medium for it's propagation. The medium may be solid, liquid or gas .
For instance, sound wave is a longitudinal wave.
Hence, the correct answer of this question is sound wave which needs a medium for it's propagation.
<span>If Dr. Gavin decides that instead of conducting a 2 ´ 4 independent-groups factorial design, and he is going to conduct a 2 ´ 4 within-subjects factorial design, then the things that will change are the various independent groups which are involved.</span>