It depends on the angle of the earth, and our point of view. A full moon would occur if we were to be right in front of it.
Answer:
A homopolar motor is a direct current electric motor with two magnetic poles, the conductors of which always cut unidirectional lines of magnetic flux by rotating a conductor around a fixed axis so that the conductor is at right angles to a static magnetic field.
Explanation:
This correct answer would be C
Answer:
a)
![u(t)=0.499ft.e^{-\frac{144.76lb/s}{2(48lb)}t}cos(\omega t)\\\\u(t)=0.499ft.e^{-1.5t}cos(\omega t)](https://tex.z-dn.net/?f=u%28t%29%3D0.499ft.e%5E%7B-%5Cfrac%7B144.76lb%2Fs%7D%7B2%2848lb%29%7Dt%7Dcos%28%5Comega%20t%29%5C%5C%5C%5Cu%28t%29%3D0.499ft.e%5E%7B-1.5t%7Dcos%28%5Comega%20t%29)
b)
m = 48lb
c)
b = 144.76lb
Explanation:
The general equation of a damping oscillate motion is given by:
(1)
uo: initial position
m: mass of the block
b: damping coefficient
w: angular frequency
α: initial phase
a. With the information given in the statement you replace the values of the parameters in (1). But first, you calculate the constant b by using the information about the viscous resistance force:
![|F_{vis}|=bv\\\\b=\frac{|F_{vis}|}{v}\\\\|F_{vis}|=27lbs=27*32.17ft.lb/s^2=868.59ft.lb/s^2\\\\b=\frac{868.59}{6}lb/s=144.76lb/s](https://tex.z-dn.net/?f=%7CF_%7Bvis%7D%7C%3Dbv%5C%5C%5C%5Cb%3D%5Cfrac%7B%7CF_%7Bvis%7D%7C%7D%7Bv%7D%5C%5C%5C%5C%7CF_%7Bvis%7D%7C%3D27lbs%3D27%2A32.17ft.lb%2Fs%5E2%3D868.59ft.lb%2Fs%5E2%5C%5C%5C%5Cb%3D%5Cfrac%7B868.59%7D%7B6%7Dlb%2Fs%3D144.76lb%2Fs)
Then, you obtain by replacing in (1):
6in = 0.499 ft
![u(t)=0.499ft.e^{-\frac{144.76lb/s}{2(48lb)}t}cos(\omega t)\\\\u(t)=0.499ft.e^{-1.5t}cos(\omega t)](https://tex.z-dn.net/?f=u%28t%29%3D0.499ft.e%5E%7B-%5Cfrac%7B144.76lb%2Fs%7D%7B2%2848lb%29%7Dt%7Dcos%28%5Comega%20t%29%5C%5C%5C%5Cu%28t%29%3D0.499ft.e%5E%7B-1.5t%7Dcos%28%5Comega%20t%29)
b.
mass, m = 48lb
c.
b = 144.76 lb/s
True statements that reflect why infants experience more fluid and electrolyte changes are that dehydration can upset the balance of electrolytes in an infant or child and the newborn is at risk of excessive water loss and hypernatremia as the result of high evaporative water loss through the skin.
As infants are not used to the environment around , they are more sensible towards problems such as Dehydration because of fast metabolism.
Dehydration can upset the balance of electrolytes in an infant or child. Children are especially vulnerable to dehydration due to their small size and fast metabolism, which causes them to replace water and electrolytes at a faster rate than adults.
Infants are particularly prone to the effects of dehydration because of their greater baseline fluid requirements (due to a higher metabolic rate), higher evaporative losses (due to a higher ratio of surface area to volume), and inability to communicate thirst or seek fluid.
The newborn is at risk of excessive water loss and hypernatremia as the result of high evaporative water loss through the skin, insensible water loss (IWL), as well as decreased capacity to concentrate the urine.
To Learn more about dehydration here
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