Let σ be the sphere x 2 + y 2 + z 2 = 1 , let n be an inward unit normal, and let D n f be the directional derivative of f x , y , z = x 2 + y 2 + z 2 . Use the result in Exercise 30 to evaluate the surface integral ∬ σ D n f d S
Let σ be the sphere x 2 + y 2 + z 2 = 1 , let n be an inward unit normal, and let D n f be the directional derivative of f x , y , z = x 2 + y 2 + z 2 . Use the result in Exercise 30 to evaluate the surface integral ∬ σ D n f d S
Let
σ
be the sphere
x
2
+
y
2
+
z
2
=
1
,
let n be an inward unit normal, and let
D
n
f
be the directional derivative of
f
x
,
y
,
z
=
x
2
+
y
2
+
z
2
.
Use the result in Exercise 30 to evaluate the surface integral
∬
σ
D
n
f
d
S
find the zeros of the function algebraically:
f(x) = 9x2 - 3x - 2
Rylee's car is stuck in the mud. Roman and Shanice come along in a truck to help pull her out. They attach
one end of a tow strap to the front of the car and the other end to the truck's trailer hitch, and the truck
starts to pull. Meanwhile, Roman and Shanice get behind the car and push. The truck generates a
horizontal force of 377 lb on the car. Roman and Shanice are pushing at a slight upward angle and generate
a force of 119 lb on the car. These forces can be represented by vectors, as shown in the figure below. The
angle between these vectors is 20.2°. Find the resultant force (the vector sum), then give its magnitude
and its direction angle from the positive x-axis.
119 lb
20.2°
377 lb
Chapter 15 Solutions
Calculus Early Transcendentals, Binder Ready Version
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, calculus and related others by exploring similar questions and additional content below.