physics
posted by srikar .
i will begreatfull if u help me insolving the below problems:
1.)the time period of a pendulum clock on the surface of the earth is 6 sec.Find the timeperiod of the same pendulum on the moon.(g=9.8m/sec2)
2.)the time period of a pendulum is 6.28sec.Whay will be its lengthif g=9.8m/sec2
3.)a long spring whose one end is rigidly fixed is stretched from the other end and then left.longitudinal waves of frequency 10Hz are produced .if the velocity of the wave is 40m/sec ,find the distance between two consecutive compressions in the spring.

1) Period is inversely proportional to g. On the moon, g is 9.8/6 = 1.63 m/s^2.
Pendulum period is 6s*sqrt6 = 14.7 s.
2) Solve P = 6.28 s = 6.28 sqrt(L/g)
L/g = 1 s^2
L = 9.8 m
3) Wavelength = (Wave speed)/(frequency)
= (40 m/s)/10 s^1) = 4 m 
T =6 s. g = 9.8 m/s², T2=?
1.
Acceleration due to gravity at the Moon is
g1 = G•M1R1²,
where the gravitational constant G =6.67•10^11 N•m²/kg²,
Mass of the moon M1= 7.36•10^22 kg,
Radius of the Moon R1 = 1.74 •10^6 m.
T =2•π•sqrt(L/g),
T1 = 2•π•sqrt(L/g1).
T/T1 =sqrt(g1/g),
T1 = T/sqrt(g1/g),
2. T=6.28 s. L=?
T =2•π•sqrt(L/g),
L = (T/2•π)² •g
3.
λ = v/f =40/10 = 4 m
x = λ/2 = 2 m
Respond to this Question
Similar Questions

physics
The period of a simple pendulum is measured to be 4.0 seconds in a frame of reference. Which of the following is correct when the period of the pendulum is measured by an observer moving with 0.4 times the speed of the light? 
physics
The period of a simple pendulum is measured to be 4.0 seconds in a frame of reference. Which of the following is correct when the period of the pendulum is measured by an observer moving with 0.4 times the speed of the light? 
physics
The period of a simple pendulum is measured to be 4.0 seconds in a frame of reference. Which of the following is correct when the period of the pendulum is measured by an observer moving with half the speed of the light? 
physics
A pendulum and a mass spring system are both undergoing simple harmonic motion on Earth (use g = 10 N/kg). It is observed that every time the pendulum goes back and forth, the spring has gone up and down 14 times. If the pendulum has … 
Physics
A pendulum and a mass spring system are both undergoing simple harmonic motion on Earth (use g = 10 N/kg). It is observed that every time the pendulum goes back and forth, the spring has gone up and down 12 times. If the pendulum has … 
Physics
A pendulum clock is accurate on earth, where the period of its pendulum is 1.00 s. (a) Find its period on the moon, where gravitational acceleration is 1.6 m/s2. (b) During a 2 h interval, what would be the elapsed time shown on the … 
Physics
A pendulum clock can be approximated as a simple pendulum of length 1.03 m and keeps accurate time at a location where g = 9.82 m/s2. In a location where g = 9.77 m/s2, what must be the new length of the pendulum, such that the clock … 
Physics
A second's pendulum is taken on the surface of moon where acceleration due to gravity is 1/6th of that of earth.Will the time period of pendulum remain same or increase or decrease? 
Calculus application of sin function
a horizontal position of the pendulum of a grandfather clock can be modelled by h(t)=Acos(2(pi)t/T), where A is amplitude of the pendulum in meters, t is time in seconds, and T is the period of the pendulum, in seconds. If the pendulum … 
Physics
A second's pendulum is taken on the surface of moon where acceleration due to gravity is 1/6th of that of earth.Will the time period of pendulum remain same or increase or decrease?