The National Ignition Facility at the Lawrence Livermore National Laboratory maintains the world's largest laser facility. The lasers, which are used to start a nuclear fusion reaction, are powered by a capacitor bank that stores a total of about 400 megajoules of energy. When the lasers are fired the capacitors discharge completely and then immediately begin recharging. The charge Q of the capacitors t seconds after the discharge is given by the following formula. Q(t) = Qo(1 - e-t/a) (The maximum charge capacity is Qo, and t is measured in seconds.) (a) Find a formula for the inverse of this function. (Use Q for Q(t).) t = Explain its meaning. This formula gives the charge a achieved at a given time t after a discharge. This formula gives the time t needed after discharge to obtain a given charge a. This formula gives the time t needed after a discharge to obtain a given charge Q. ○ This formula gives the charge Q achieved at a given time t after a discharge. This formula gives the charge Qo achieved at a given time t after a discharge. (b) How long (in s) does it take to recharge the capacitors to 80% of capacity if a = 40? (Round your answer to one decimal place.)
The National Ignition Facility at the Lawrence Livermore National Laboratory maintains the world's largest laser facility. The lasers, which are used to start a nuclear fusion reaction, are powered by a capacitor bank that stores a total of about 400 megajoules of energy. When the lasers are fired the capacitors discharge completely and then immediately begin recharging. The charge Q of the capacitors t seconds after the discharge is given by the following formula. Q(t) = Qo(1 - e-t/a) (The maximum charge capacity is Qo, and t is measured in seconds.) (a) Find a formula for the inverse of this function. (Use Q for Q(t).) t = Explain its meaning. This formula gives the charge a achieved at a given time t after a discharge. This formula gives the time t needed after discharge to obtain a given charge a. This formula gives the time t needed after a discharge to obtain a given charge Q. ○ This formula gives the charge Q achieved at a given time t after a discharge. This formula gives the charge Qo achieved at a given time t after a discharge. (b) How long (in s) does it take to recharge the capacitors to 80% of capacity if a = 40? (Round your answer to one decimal place.)
Chapter6: Exponential And Logarithmic Functions
Section6.1: Exponential Functions
Problem 60SE: The formula for the amount A in an investmentaccount with a nominal interest rate r at any timet is...
Related questions
Question
100%
Help me work through this problem.
Expert Solution
Step 1
Trending now
This is a popular solution!
Step by step
Solved in 3 steps with 3 images
Recommended textbooks for you
Algebra & Trigonometry with Analytic Geometry
Algebra
ISBN:
9781133382119
Author:
Swokowski
Publisher:
Cengage
Trigonometry (MindTap Course List)
Trigonometry
ISBN:
9781337278461
Author:
Ron Larson
Publisher:
Cengage Learning
Algebra & Trigonometry with Analytic Geometry
Algebra
ISBN:
9781133382119
Author:
Swokowski
Publisher:
Cengage
Trigonometry (MindTap Course List)
Trigonometry
ISBN:
9781337278461
Author:
Ron Larson
Publisher:
Cengage Learning