Answer:
Explanation:
A vector from a point to a point is denoted , and a vector may be denoted , or more commonly, . The point is often called the "tail" of the vector, and is called the vector's "head." A vector with unit length is called a unit vector and is denoted using a hat, .
Answer: cosθ = 0.7531
Explanation: the phase angle cosθ is given as
cosθ = R/Z
Where R = resistive reactance = 14.5 ohms
Z = impeadance = √R^2 +(Xl - Xc)^2
Where Xl = inductive reactance = 16.5 ohms and Xc= capacitive reactance = 9.41 ohms
By substituting the parameters, we have that
Z = √14.5^2 + (16.5^2 - 9.41^2)
Z = √210.25 + (272.25 - 88.5481)
Z = √210.25 + 183.7019
Z = √393.9519
Z = 19.85 ohms
Z = 19.85 ohms, R = 14.5 ohms
cosθ = R/Z = 14.5/19.85
cosθ = 0.7531
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The answer to the question can charging by friction occur only in solids is no. not at all. the static charge generated by following fluids can be hazardous. just as the static discharge when you touch a doorknob produces a spark, lightening is the spark from the static charge built up in the atmosphere.
Is this asking just to convert pounds to kilograms? if so, than 3200lbs converts to 1451.496kgs