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diamong [38]
3 years ago
9

Research suggests that depriving people of _____ sleep can cause emotional overreactions to threatening situations. A. NREM 1 B.

slow-wave C. paradoxical D. NREM 2
Physics
1 answer:
Nezavi [6.7K]3 years ago
5 0
<h2>Cause Emotional Overreactions to Threatening Situations - Option A </h2>

Research suggests that depriving people of NREM sleep can cause emotional overreactions to threatening situations. Non-rapid eye movement sleep is combined sleep steps which are 1–3, earlier identified as stages 1–4.

Rapid eye movement sleep is not involved. There are different electro encephalographic and other features observed in every step. There is normally light or no eye movement throughout these stages.  

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Mitch throws a 100-g lump of clay at a 500-g target, which is at rest on a horizontal surface. After impact, the target, includi
max2010maxim [7]

Answer:

27.22 m/s

Explanation:

Let the speed of clay before impact is u.

the speed of clay and target is v after impact.

use conservation of momentum

momentum before impact  momentum after impact

mass of clay x u = (mass of clay + mass of target) x v

100 x u = (100 + 500) x v

u = 6 v .....(1)

distance, s = 2.1 m

μ = 0.5

final velocity is zero. use third equation of motion

v'² = v² + 2as

0 = v² - 2 x μ x g x s

v² = 2 x 0.5 x 9.8 x 2.1 = 20.58

v = 4.54 m/s

so by equation (1)

u = 6 x 4.54 = 27.22 m/s

thus, the speed of clay before impact is 27.22 m/s.

3 0
3 years ago
Which of these instruments can be used to peedict a thunderstorm?
FinnZ [79.3K]
<span> Doppler Radar is the instrument that is used to predict a thunderstorm. </span>
8 0
3 years ago
What two forms of energy are associated with mechanical energy?
Katen [24]
Potential energy and kinetic energy.
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7 0
3 years ago
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If the wave being sent is transmitted via an electromagnetic wave explain how the digital signal would be perceived if the signa
Andrej [43]

Answer:

amplitude is commonly for transmitting messages with a radio carrier wave, the amplitude (signal strength) of the carrier wave is varied in proportion to that of the message signal. at the receiving end, the message signal is extracted from the modulated carrier by demodulation. frequency is the encoding of information in a carrier wave with instantaneous frequency. with digital data, the frequency of the carrier is shifted among a set of frequencies, using digits like 1 and 0

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The vertical component of the acceleration of a sailplane is zero when the air pushes up against its wings with a lift force of
lorasvet [3.4K]

Answer:

Explanation:

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So sailplane is experiencing an upward force equal to its weight . This force is generated due to air pushing up against its wings .

We know that every force generated has equal and opposite reaction force . Air is generating force on wings of sailplane , hence wings will also exert equal force on air on downward direction . This force will be transmitted to the earth by air .

Hence the gravitational force on Earth due to the sailplane will be equal to weight of sailplane . This force is 5.2 kN .

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2 years ago
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