For the following exercises, approximate the mass of the homogeneous lamina that has the shape of given surface S . Round to four decimal places. 291. Evaluate surface integral ∬ s g d S , where g ( x , y , z ) = x z + 2 x 2 − 3 x y and S is the portion of plane 2 x − 3 y + z = 6 that lies over unit square R : 0 ≤ x ≤ 1 , 0 ≤ y ≤ 1 .
For the following exercises, approximate the mass of the homogeneous lamina that has the shape of given surface S . Round to four decimal places. 291. Evaluate surface integral ∬ s g d S , where g ( x , y , z ) = x z + 2 x 2 − 3 x y and S is the portion of plane 2 x − 3 y + z = 6 that lies over unit square R : 0 ≤ x ≤ 1 , 0 ≤ y ≤ 1 .
For the following exercises, approximate the mass of the homogeneous lamina that has the shape of given surface S. Round to four decimal places.
291. Evaluate surface integral
∬
s
g
d
S
, where
g
(
x
,
y
,
z
)
=
x
z
+
2
x
2
−
3
x
y
and S is the portion of plane
2
x
−
3
y
+
z
=
6
that lies over unit square R:
0
≤
x
≤
1
,
0
≤
y
≤
1
.
Quantities that have magnitude and direction but not position. Some examples of vectors are velocity, displacement, acceleration, and force. They are sometimes called Euclidean or spatial vectors.
6.26
The Weibull density function is given by
e-y/a
f(y) = α
0.
y > 0,
elsewhere,
where a and m are positive constants. This density function is often used as a model for the
lengths of life of physical systems. Suppose Y has the Weibull density just given. Find
a the density function of UY".
b E(Y) for any positive integer k.
6.27
Let Y have an exponential distribution with mean ẞ.
6.28
6.29
a Prove that W = √Y has a Weibull density with α = ẞ and m = 2.
b
Use the result in Exercise 6.26(b) to give E(Yk/2) for any positive integer k.
Let Y have a uniform (0, 1) distribution. Show that U = -2ln(Y) has an exponential distri-
bution with mean 2.
The speed of a molecule in a uniform gas at equilibrium is a random variable V whose density
function is given by
6.30
6.31
6.32
f(v) = av²e-by², v > 0,
where b = m/2kT and k, T, and m denote Boltzmann's constant, the absolute temperature,
and the mass of the molecule, respectively.
a Derive the distribution of W = mV2/2, the kinetic energy of…
correct answer is Acould you please show me how to compute using the residue theorem
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, subject and related others by exploring similar questions and additional content below.