Physics
posted by Anonymous .
I got part a but I'm having trouble figuring out b... I know the formula should be something like:
T=2pi/omega and omega=sqrt(k/m) but how am I supposed to find T when I don't know k or m??
A pendulum has a period of 2.4 s. a) What is its length?
l = m *
1.4298 OK
b) Its mass is doubled. What is its period now?
HELP: What is the formula for the period of a simple pendulum?
HELP: T = 2π / ω. What is ω for a simple pendulum?

I am a student.But i think i may help you.....the formula for the period of a simple pendulum is T = 2pi(L/g)^0.5.........as you can see..the mass do not affect the period.
Respond to this Question
Similar Questions

Physics
A tower clock has an hour hand 2.70 m long with a mass of 60.o kg, and a minute hand 4.50 m long with a mass of 100 kg. Calculate the total rotational kinetic energy of the two hands about the axis of rotation. Sol: I know that Kr … 
Physics
You have a mass of 2 kg attached to a spring with a spring constant 18 N/m. The mass is at rest at the equilibrium position. At time t=0 you hit the object with a hammer. This blow instantaneously gives the object a velocity of 3 m/s. … 
Forced Oscillation  drwls => I need your help =)
A 2.00kg object attatched to a spring moves without friction and is driven by an external force given by F= (3.00N)sin(2pi*t) The force constant of the spring is 20N/m. Determine a) period b) amplitude of motion a)T= 2pi/omega T= 2pi/ … 
college Physics
The coordinates of an object moving in the xy plane vary with time according to the following equations x = −7.16 sin ùt and y = 4.00 − 7.16 cos ùt, where ù is a constant, x and y are in meters, and t is in seconds. … 
Trigonometry
Prove that sin^2(Omega)  Cos^2(Omega) / tan(Omega) sin(Omega) + cos(Omega) tan(Omega) = cos(Omega)  cot (Omega) cos (omega) If could explain, please. That would be great (: 
Trigonometry
Prove that sin^2(Omega)  Cos^2(Omega) / tan(Omega) sin(Omega) + cos(Omega) tan(Omega) = cos(Omega)  cot (Omega) cos (omega) 
Trigonometry
Prove that sin^2(Omega)  Cos^2(Omega) / tan(Omega) sin(Omega) + cos(Omega) tan(Omega) = cos(Omega)  cot (Omega) cos (omega) 
Trigonometry
Prove that sin^2(Omega)  Cos^2(Omega) / tan(Omega) sin(Omega) + cos(Omega) tan(Omega) = cos(Omega)  cot (Omega) cos (omega) 
science
An object moves up and down the yaxis with an acceleration given as a function of time t by the expression a equals A sine of omegat. , whereA. and omega. are constants. What is the period of this motion? 
precalculus, complex numbers
Let $\omega$ be a complex number such that $\omega^7 = 1$ and $\omega \neq 1$. Let $\alpha = \omega + \omega^2 + \omega^4$ and $\beta = \omega^3 + \omega^5 + \omega^6$. Then $\alpha$ and $\beta$ are roots of the quadratic \[x^2 + px …