![subject](/tpl/images/cats/User.png)
Engineering, 08.09.2020 01:01 jacamron
The voltage, V, in volts, in an electrical outlet is given as a function of time, t, in seconds, by the function V=156cos(120πt).V=156cos(120πt).
(a) Give an expression for the rate of change of voltage with respect to time.
(b) Is the rate of change ever zero? Explain.
(c) What is the maximum value of the rate of change?
![ansver](/tpl/images/cats/User.png)
Answers: 2
Another question on Engineering
![question](/tpl/images/cats/User.png)
Engineering, 03.07.2019 19:30
When using the ohmmeter function of a digital multimeter, the leads are placed in what position relative to the component being tested? a. parallel b. control c. series d. line
Answers: 3
![question](/tpl/images/cats/User.png)
Engineering, 04.07.2019 12:10
On a average work day more than work place firs are reorted
Answers: 1
![question](/tpl/images/cats/User.png)
Engineering, 04.07.2019 18:10
During a steady flow process, the change of energy with respect to time is zero. a)- true b)- false
Answers: 2
![question](/tpl/images/cats/User.png)
Engineering, 04.07.2019 18:10
An air compression refrigeration system is to have an air pressure of 100 psia in the brine tank and an allowable air temperature increase of 60°f for standard vapor compression cycle temperatures of 77 f entering the expansion cylinder and 14 f entering the compression cylinder, calculate the coefficient of performance a. 2.5 b 3.3 c. 4.0 d. 5.0
Answers: 3
You know the right answer?
The voltage, V, in volts, in an electrical outlet is given as a function of time, t, in seconds, by...
Questions
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 05.10.2020 15:01
![question](/tpl/images/cats/health.png)
Medicine, 05.10.2020 15:01
![question](/tpl/images/cats/obshestvoznanie.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/istoriya.png)
History, 05.10.2020 15:01
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 05.10.2020 15:01
![question](/tpl/images/cats/mat.png)
Mathematics, 05.10.2020 15:01
![question](/tpl/images/cats/pravo.png)
![question](/tpl/images/cats/fr.png)
French, 05.10.2020 15:01
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
History, 05.10.2020 15:01
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/biologiya.png)
Biology, 05.10.2020 15:01
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)