Two bugs are walking along lines in 3-space. At time t bug 1 is at the point x , y , z on the line x = 4 − t , y = 1 + 2 t , z = 2 + t and at the same time t bug 2 is at the point x , y , z on the line x = t , y = 1 + t , z = 1 − 1 − 2 t Assume that distance is in centimeters and that time is in minutes. (a) Find the distance between the bugs at time t = 0. (b) Use a graphing utility to graph the distance between the bugs as a function of time from t = 0 to t = 5. (c) What does the graph tell you about the distance between the bugs? (d) How close do the bugs get?
Two bugs are walking along lines in 3-space. At time t bug 1 is at the point x , y , z on the line x = 4 − t , y = 1 + 2 t , z = 2 + t and at the same time t bug 2 is at the point x , y , z on the line x = t , y = 1 + t , z = 1 − 1 − 2 t Assume that distance is in centimeters and that time is in minutes. (a) Find the distance between the bugs at time t = 0. (b) Use a graphing utility to graph the distance between the bugs as a function of time from t = 0 to t = 5. (c) What does the graph tell you about the distance between the bugs? (d) How close do the bugs get?
Two bugs are walking along lines in 3-space. At time t bug 1 is at the point
x
,
y
,
z
on the line
x
=
4
−
t
,
y
=
1
+
2
t
,
z
=
2
+
t
and at the same time t bug 2 is at the point
x
,
y
,
z
on the line
x
=
t
,
y
=
1
+
t
,
z
=
1
−
1
−
2
t
Assume that distance is in centimeters and that time is in minutes.
(a) Find the distance between the bugs at time
t
=
0.
(b) Use a graphing utility to graph the distance between the bugs as a function of time from
t
=
0
to
t
=
5.
(c) What does the graph tell you about the distance between the bugs?
5
Use the method of disks to find the volume of the solid that is obtained
when the region under the curve y = over the interval [4,17] is rotated
about the x-axis.
3. Use the method of washers to find the volume of the solid that is obtained
when the region between the graphs f(x) = √√2 and g(x) = secx over the
interval ≤x≤ is rotated about the x-axis.
4. Use cylindrical shells to find the volume of the solid generated when the
region enclosed by the given curves is revolved about the x-axis.
y = √√x, y = 0, y = √√3
Chapter 11 Solutions
Calculus Early Transcendentals, Binder Ready Version
University Calculus: Early Transcendentals (4th Edition)
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