Based on data from Hurricane Katrina, the function defined by w x = − 1.17 x + 1220 gives the wind speed w x (in mph) based on the barometric pressure x (in millibars, mb). a. Approximate the wind speed for a hurricane with a barometric pressure of 1000 mb. b. Write a function representing the inverse of w and interpret its meaning in context. c. Approximate the barometric pressure for a hurricane with wind speed 100 mph. Round to the nearest mb.
Based on data from Hurricane Katrina, the function defined by w x = − 1.17 x + 1220 gives the wind speed w x (in mph) based on the barometric pressure x (in millibars, mb). a. Approximate the wind speed for a hurricane with a barometric pressure of 1000 mb. b. Write a function representing the inverse of w and interpret its meaning in context. c. Approximate the barometric pressure for a hurricane with wind speed 100 mph. Round to the nearest mb.
Solution Summary: The author calculates the wind speed for a hurricane at the barometric pressure of 1000mb. The inverse of the given wind function w(x) is
Based on data from Hurricane Katrina, the function defined by
w
x
=
−
1.17
x
+
1220
gives the wind speed
w
x
(in mph) based on the barometric pressure x (in millibars, mb).
a. Approximate the wind speed for a hurricane with a barometric pressure of 1000 mb.
b. Write a function representing the inverse of w and interpret its meaning in context.
c. Approximate the barometric pressure for a hurricane with wind speed 100 mph. Round to the nearest mb.
A driver is traveling along a straight road when a buffalo runs into the street. This driver has a reaction time of 0.75 seconds. When the driver sees the buffalo he is traveling at 44 ft/s, his car can decelerate at 2 ft/s^2 when the brakes are applied. What is the stopping distance between when the driver first saw the buffalo, to when the car stops.
Topic 2
Evaluate S
x
dx, using u-substitution. Then find the integral using
1-x2
trigonometric substitution. Discuss the results!
Topic 3
Explain what an elementary anti-derivative is. Then consider the following
ex
integrals: fed dx
x
1
Sdx
In x
Joseph Liouville proved that the first integral does not have an elementary anti-
derivative Use this fact to prove that the second integral does not have an
elementary anti-derivative. (hint: use an appropriate u-substitution!)
1. Given the vector field F(x, y, z) = -xi, verify the relation
1
V.F(0,0,0) = lim
0+ volume inside Se
ff F• Nds
SE
where SE is the surface enclosing a cube centred at the origin and having edges of length 2€. Then,
determine if the origin is sink or source.
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