Why does a motor unit of the eye have few muscle fibers compared to a motor unit of the leg? Why does a motor unit of the eye have few muscle fibers compared to a motor unit of the leg? Eyes require fine movements and a high degree of control, which is permitted by having […]
What are the eigenvalues and eigenfunctions of the Sturm-Liouville problem?
What are the eigenvalues and eigenfunctions of the Sturm-Liouville problem? The problem of finding a complex number µ if any, such that the BVP (6.2)-(6.3) with λ = µ, has a non-trivial solution is called a Sturm-Liouville Eigen Value Problem (SL-EVP). Such a value µ is called an eigenvalue and the corresponding non-trivial solutions y(.; […]
How does doubling the frequency affect the reactance of an inductor?
How does doubling the frequency affect the reactance of an inductor? The quick answer is that since the reactance of an ideal inductor is given by the equation X = 2*pi*f*L, doubling the frequency will double the inductive reactance. However, a real inductor also has resistance (and usually also some inductance) in series, and also […]
Which answer is correct sharps containers?
Which answer is correct sharps containers? Which answer is correct regarding sharps containers? Needles and syringes should never be recapped by hand and must be discarded directly into a sharps container or needle box located in the immediate work area. Where should sharps containers be placed? The container should be placed in a visible location, […]
Why does current stop flowing through a capacitor?
Why does current stop flowing through a capacitor? Electrical current can not actually flow through a capacitor as it does a resistor or inductor due to the insulating properties of the dielectric material between the two plates. However, the charging and discharging of the two plates gives the effect that current is flowing. What happened […]
How do you find the transfer function of a closed loop system?
How do you find the transfer function of a closed loop system? Closed-loop System Transfer Function To find the transfer function of the closed-loop system above, we must first calculate the output signal θo in terms of the input signal θi. Note that the error signal, θe is also the input to the feed-forward block: […]
How do you match old shingles to new ones?
How do you match old shingles to new ones? If you’re looking to blend new and old shingles, saving shingles from your original roof installation is an excellent first step. If fading isn’t dramatic, your contractor may be able to achieve a uniform look with the same materials. If shingles have faded, try going a […]
What is the difference between a thermoplastic and a thermosetting plastic?
What is the difference between a thermoplastic and a thermosetting plastic? Thermosoftening (also called thermoplastics) are plastics which will soften when heated and can be reshaped. Thermosetting plastics are plastics do not soften on heating. They are used when resistance to heat is important (eg kettles, plugs, laptop chargers etc). What are the main differences […]
How do you find the standard deviation of a uniform distribution?
How do you find the standard deviation of a uniform distribution? The standard deviation of X is σ=√(b−a)212. The probability density function of X is f(x)=1b−a for a≤x≤b. The cumulative distribution function of X is P(X≤x)=x−ab−a. How do you find the standard deviation of a random variable X? For a discrete random variable the standard […]