answersLogoWhite

0

The earth undergoes a number of motions. The motion around the polar

axis accounts for the length of days and nights. The motion around the sun accounts for

the length of the year. Of interest here is the rotation of earth on the polar axis. The primary contributor to the differences we see in the length of periods of daylight is the tilt in earth's axis. You have noticed that globes of the earth are virtually always set on frames with the north-south pole oriented at an angle (of about 22.4 degrees). This is not because the tilt is more visually appealing. The earth is actually tilted that way, measured against the plane that contains the earth's whole orbit. When people in the south are experiencing summer around December-March, the south pole is tilted toward the sun. In the middle of the south temperate zone, more than half of your line of latitude will be in the sun at any moment. This is because of the tilt. As the earth rotates anyone at that latitude will spend more than half the day in sunlight. At the related latitude in the north, less than half the day will be in the sun. This all cycles back and forth as the earth orbits the sun, the axis maintaining its point almost exactly in the same direction.

User Avatar

Wiki User

17y ago

What else can I help you with?

Continue Learning about Astronomy

How does the age of the universe relate to the hubble constant?

The age of the universe is inversely proportional to the Hubble constant. A smaller Hubble constant would imply a younger universe, while a larger Hubble constant would suggest an older universe. This relationship is based on the assumption that the expansion rate of the universe has been constant over time.


If the hubble constant H is larger at great distances then what is happening?

An increasing Hubble constant at great distances indicates an accelerated expansion of the universe. This phenomenon is attributed to dark energy, a mysterious force causing the universe to expand at an increasing rate. It suggests that as the universe expands, the distance between galaxies grows larger, leading to a greater Hubble constant at greater distances.


Earth's rate of revolution is very close to?

Earth's rate of revolution around the Sun is approximately 365.25 days, which is why we have leap years every four years to account for the extra quarter day. This close to 365.25 days is why our calendar has 365 days in a year with an extra day in leap years.


What is mercurys rotation rate?

Its very slow, despite orbiting the sun in a very quick time. it rotates once every 58.6 days relative to background stars.


How do you measure the hubble constant from a graph?

That's going to depend on the type of information that the graph presents. For example, if it's a graph of the Fed's prime lending rate over the past five years, or the CO2 content of the atmosphere since the 16th Century, or the growth of HIV in Africa, there would be no way. On the other hand, if the graph showed the radial velocities of 200 galaxies vs. their measured distances, then you'd have a pretty good chance ... the Hubble Constant would be just the slope of the best fit line on that graph.

Related Questions

Difference between rate constant and specific rate constant?

There is no difference between them they are same rate constant is another name of specific rate constant


How can the rate constant be determined from the rate law?

The rate constant is the reaction rate divided by the concentration terms.


How can rate constant be determined from the rate law?

The rate constant is the reaction rate divided by the concentration terms.


How can the rate constant be determine from the rate law?

The rate constant is the reaction rate divided by the concentration terms.


The rate of change of any nonlinear function is constant?

No. Only a linear function has a constant rate of change.No. Only a linear function has a constant rate of change.No. Only a linear function has a constant rate of change.No. Only a linear function has a constant rate of change.


What happens to the rate constant as energy increases?

The rate constant decreases.


What does constant rate mean in math?

It means the same rate. Its going/moving at a constant rate.


What happens to the rate constant as activation energy increase?

The rate constant decreases.


What is the difference between constant rate and varying rate?

constant rate means that rate which is fixed and can not be changed. varying rate is that rate which is not fixed and can be change easily.


What is the k in the rate law equation?

A rate constant


How do you determine if a rate of change is constant?

You can determine if a rate of change is constant, by taking the instantaneous rate of change at multiple points - if they are all equal to each other, it can be assumed that the rate of change is constant. Alternatively, you can differentiate the function (if there is an associated function) - if this comes to a constant i.e. a number, then the rate of change is constant.


What is relative rate constant?

The relative rate constant is a ratio of the rate constants of two reactions in a chemical reaction mechanism. It is used to determine the rate of reaction between different reactants in relation to each other.