# Physics

For non-ideal oscillators (such as a real pendulum) energy is lost and the amplitude (which is the maximum displacement) is no longer constant but also decreases with time. How fast the energy lost is described by a TIME CONSTANT, τ = m/b. Typically after ONE time constant has elapsed, the system has ...(hint: this is when t = τ)
a)LOST half of its initial energy.
b)LOST 63% of its initial energy.
c)LOST 13% of its initial energy.
d)LOST 37% of its initial energy.
Thank you!

1. 👍 0
2. 👎 0
3. 👁 593
1. B) LOST 63% of its initial energy.

I just saw this on my webassign

1. 👍 0
2. 👎 0
posted by Jay rome

## Similar Questions

1. ### Physics

(a) What is the energy of a pendulum (L = 0.9 m, m = 0.4 kg) oscillating with an amplitude of 4.3 cm? (b) The pendulum's energy loss (due to damping) is replaced in a clock by allowing a 2.3-kg mass to drop 1.0 m in 1 week. What

asked by Ally on June 25, 2012
2. ### Physics plz help

(a) What is the energy of a pendulum (L = 0.9 m, m = 0.4 kg) oscillating with an amplitude of 4.3 cm? (b) The pendulum's energy loss (due to damping) is replaced in a clock by allowing a 2.3-kg mass to drop 1.0 m in 1 week. What

asked by Ally on June 25, 2012
3. ### Physics

1. If a mass on a spring and a pendulum have the same period on the moon where the gravity is about 1/6 of its value on the Earth, which one will run faster on the Earth? a. The mass on the spring. b. The pendulum. c. They will

asked by Ben on January 9, 2012
4. ### physics/science

If a pendulum is not pushed, why does it not go as big when it swings back. Where does the lost PE go? ans. Since there is no force applied to the pendulum there is not enough Kinetic energy (energy of motion) to transform into

asked by CC on February 9, 2014
5. ### science/physics

If a pendulum is not pushed, why does it not go as big when it swings back. Where does the lost PE go? ans. Since there is no force applied to the pendulum there is not enough Kinetic energy (energy of motion) to transform into

asked by CC on February 9, 2014
6. ### physics

A frictionless pendulum of length 3 m swings with an amplitude of 10◦. At its maximum displacement, the potential energy of the pendulum is 10 J. What is the kinetic energy of the pendulum when its potential energy is 5 J? 1. K

asked by Anonymous on January 5, 2010

A Foucault pendulum is designed to demonstrate the effect of the Earth's rotation. A Foucault pendulum displayed in a museum is typically quite long, making the effect easier to see. Consider a Foucault pendulum of length 16 m

8. ### physics

A Foucault pendulum is designed to demonstrate the effect of the Earth's rotation. A Foucault pendulum displayed in a museum is typically quite long, making the effect easier to see. Consider a Foucault pendulum of length 16 m

asked by HELP!!!! on April 23, 2011
9. ### Physics

Two different simple harmonic oscillators have the same natural frequency (f=5.60 Hz) when they are on the surface of the Earth. The first oscillator is a pendulum, the second is a vertical spring and mass. If both systems are

asked by Emily on November 28, 2012
10. ### Physics

A 0.56-kg mass is suspended from a string, forming a pendulum. The period of this pendulum is 3.6 s when the amplitude is 2.2 cm. The mass of the pendulum is now reduced to 0.27 kg. What is the period of oscillation now, when the

asked by Angie on March 22, 2010

More Similar Questions