SOLUTION: I am completely lost on this one,I know how to do the equations except for when it comes to the square root part. Can you give me an example or show me how to work it out please?

Question 590884: I am completely lost on this one,I know how to do the equations except for when it comes to the square root part. Can you give me an example or show me how to work it out please?
2. The time (in seconds) it takes a pendulum on a grandfather clock to swing back and forth once is given by T=6.28√(l/32)
Where l is the length of the pendulum in feet.
2(a) Solve this equation for l.
2(b) Suppose it takes 2 seconds for the pendulum to swing back and forth once. How long is the pendulum?
2(c) Suppose a pendulum is 1.5 feet long. How long will it take the pendulum to swing back and forth once?
2(d) How many times will the pendulum in 2(c) swing back and forth in one minute?
Answer by mananth(16946) (Show Source): You can put this solution on YOUR website!
2. The time (in seconds) it takes a pendulum on a grandfather clock to swing back and forth once is given by T=6.28sqrt(l/32)
Where l is the length of the pendulum in feet.
2(a) Solve this equation for l.

/6.28

square both sides

You can simplify .
2(b) Suppose it takes 2 seconds for the pendulum to swing back and forth once. How long is the pendulum?

plug t= 2

l= 3.25 feet
2(c) Suppose a pendulum is 1.5 feet long. How long will it take the pendulum to swing back and forth once?

plug l=1.5

t= 1.36 s

2(d) How many times will the pendulum in 2(c) swing back and forth in one minute?
RELATED QUESTIONS
I am doing quadratic equations, the problem is {{{ X^2-x-12 }}} I understand most of it... (answered by Alan3354,jim_thompson5910)

How do you find the x and y intercepts of a log function? Example: f(x) = {{{ log( 2, (answered by vleith)

I am very confused with how radical equations work...everything about them is confusing... (answered by josgarithmetic,ikleyn)

I am having trouble completely solving this square root problem. I know the part... (answered by htmentor)

I am not getting this at ALL :( I am a complete math IDIOT, and I really need the steps... (answered by solver91311)

Okay, So i have a Quiz tommorrow and i dont know exactly What to do when it comes to... (answered by ankor@dixie-net.com)

Can someone help me do this equation? I am completely lost. This is my first one and... (answered by stanbon)

Factor: 42-13r+r^2 I don't even know where to begin with this problem! I am also... (answered by jim_thompson5910)

i don't understand some of the quadratic equation steps, like: * when to use the two... (answered by stanbon,richwmiller)