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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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A ball on the end of a string is whirled around in a horizontal circle of radius 0.478 m. The plane of the circle is 1.02 m abov
m_a_m_a [10]

Answer:

Explanation:

We shall find first the velocity of ball at the time when string breaks. Let it be v . During its fall on the ground , 1.02 m below, we use the formula

h = 1/2 gt² where t is time of fall .

1.02 = 1/2 x 9.8 x t²

t²= .2081

t = .456

During this time it travels horizontally at distance of 2.5 m with uniform velocity of v

v x .456 = 2.5

v  = 5.48 m /s

centripetal acceleration

= v² / r where r is radius of the circular path

= 5.48² / .478

= 62.82 m /s²

3 0
3 years ago
The sketch below shows some of the insides of a stereo speaker. Running current through the wire, which is wrapped around the ba
VARVARA [1.3K]

Energy transformation, also termed as energy conversion, is the process of changing energy from one of its forms into another. In physics, energy is a quantity that provides the capacity to perform many works—think of lifting or warming an object. In addition to being convertible, energy is transferable to a different location or object, but it cannot be created or destroyed.


Energy in many of its forms may be used in natural processes, or to provide some service to society such as heating, refrigeration, lighting or performing mechanical work to operate machines. For example, in order to heat your home, your furnace can burn fuel, whose chemical potential energy is thus converted into thermal energy, which is then transferred to your home's air in order to raise its temperature.


In another example, an internal combustion engine burns gasoline to create pressure that pushes the pistons, thus performing work in order to accelerate your vehicle, ultimately converting the fuel's chemical energy to your vehicle's additional kinetic energy corresponding to its increase in speed.

Contents


   1 Entropy and limitations in conversion of thermal energy to other types

   2 Transformation of kinetic energy of charged particles to electric energy

   3 History of energy transformation from the early universe

   4 Examples

       4.1 Examples of sets of energy conversions in machines

       4.2 Other energy conversions

   5 See also

   6 References



3 0
2 years ago
Read 2 more answers
Q: The picture above shows a frying pan. Why are frying pans usually made out of metal? 
Natasha_Volkova [10]
A. Because metal is a good conductor of heat.

If a frying pan wasn't a good conductor of heat it's purpose of cooking things wouldn't really be resolved. Without heat it couldn't cook well. I think lol that's my way of thinking.



Hope I helped :)
4 0
2 years ago
Read 2 more answers
A 30kg mass is brought from the earth to the moon what is the weight on the earth
ozzi

Answer:

Solution

verified

Verified by Toppr

Given:

Mass of body = 30 kg

gravitational acceleration on the moon = 1.62 m/s

2

Weight of the body on the moon = Mass of the body×gravitational acceleration on the moon=30×1.62=48 N

8 0
1 year ago
A transformer is designed to provide 6 V from a 150 V supply. If the primary coil has 1000 turns, how many turns does the second
zavuch27 [327]
The applicable relationship is N1/N2 = V1/V2, meaning the ratio of primary voltage to secondary voltage is equal to the ratio of primary turns to secondary turns.

Here N1 = 1000, V1 = 250, V2 = 400V and N2 = TBD.

Rewriting the above relationship, N2 = N1 V2/V1 = 1000 x 400/250 = 1600 turns.
7 0
2 years ago
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