Questions from Modern Physics

Q: If a pendulum clock is taken to a mountaintop, does it

If a pendulum clock is taken to a mountaintop, does it gain or lose time, assuming it is correct at a lower elevation? Explain.

Q: Why do short dogs (like Chihuahuas) walk with quicker strides

Why do short dogs (like Chihuahuas) walk with quicker strides than do tall dogs (like Great Danes)?

Q: Could a standard of time be based on the period of a

Could a standard of time be based on the period of a certain standard pendulum? What advantages and disadvantages would such a standard have compared to the actual present-day standard discussed in Se...

Q: In designing structures in an earthquake-prone region, how should

In designing structures in an earthquake-prone region, how should the natural frequencies of oscillation of a structure relate to typical earthquake frequencies? Why? Should the structure have a large...

Q: If a uniform spring is cut in half, what is the

If a uniform spring is cut in half, what is the force constant of each half? Justify your answer. How would the frequency of SHM using a half-spring differ from the frequency using the same mass and t...

Q: Two waves travel on the same string. Is it possible for

Two waves travel on the same string. Is it possible for them to have (a) different frequencies; (b) different wavelengths; (c) different speeds; (d) different amplitudes; (e) the same frequency but di...

Q: Two waves travel on the same string. Is it possible for

Two waves travel on the same string. Is it possible for them to have (a) different frequencies; (b) different wavelengths; (c) different speeds; (d) different amplitudes; (e) the same frequency but di...

Q: Is a pound of butter on the earth the same amount as

Is a pound of butter on the earth the same amount as a pound of butter on Mars? What about a kilogram of butter? Explain.

Q: Example 13.2 (Section 13.1) shows that

Example 13.2 (Section 13.1) shows that the acceleration of each sphere caused by the gravitational force is inversely proportional to the mass of that sphere. So why does the force of gravity give all...

Q: When will you attract the sun more: today at noon,

When will you attract the sun more: today at noon, or tonight at midnight? Explain.