微积分I(标准路径) · 免费预览
§1.5 Interpreting, estimating, and using the derivative (continued)
在运动物体位置以外的情境中,函数的导数度量的是什么?
1. Summary
Summary
2. Coffee cooling by central difference
For coffee with temperature degrees Fahrenheit, a central difference with at estimates . Round to three decimals, in degrees per minute.
3. Coffee cooling rate
Coffee temperature is degrees Fahrenheit. A central difference with gives . This value means the coffee
4. Comparing two coffee cooling rates
The same coffee satisfies , with degrees per minute. Which is greater, or , and why?
5. Units of sensitivity
If a drug dose of milliliters raises body temperature by degrees Fahrenheit, then the sensitivity is measured in degrees Fahrenheit per milliliter.
6. When the tossed ball's velocity is greatest
A tossed ball has velocity ft/sec for . The ball's velocity is greatest at .
7. Acceleration of a tossed ball
A ball tossed upward has velocity ft/sec at time seconds. What is and what does it represent?
8. Average depreciation rate
A car's value satisfies and dollars. Compute the average rate of change of value on , in dollars per mile, rounded to three decimals.
9. Best estimate of an instantaneous depreciation rate
The same car also satisfies dollars. Using the best available estimate (a central difference), compute in dollars per mile, rounded to three decimals.
10. Comparing depreciation rates
A car's value is dollars after miles. Data suggests the value curve is decreasing and bending upward as mileage grows. Which relation holds?