The cycle of the moon's phases is relatively constant, but, due to its elliptical orbit, its distance from the Earth is not. Over the course of a month, the moon moves between its closest distance to Earth (perigee) and its farthest distance to Earth (apogee). This means that the moon...
The Moon Distance Calculator shows approximate times for when the Moon is closest to the Earth (perigee) and furthest from the Earth (apogee).
Simply track the rocket to its highest point, tilt the homemade inclinometer so that you're looking at the apogee point through the straw, and pinch the string to the protractor once the string stops moving. Subtract the number on the protractor from 90 and you have the angle you need for...
Divide the mass of the compound by the mass of the solvent and then multiply by 100 g to calculate the solubility in g/100g . Solubility of NaNO3=21.9g or NaNO3 x 100 g/ 25 g =87.6. Step 2 Calculate the molar mass of the dissolved compound as the sum of mass of all atoms in ...
3. Areviewof how to calculate and useordered derivativeswhen building complex intelligent systems.I first proved the chain rule for ordered derivatives back in 1974, as part of my Harvard PhD thesis. The concept propagated from there in many directions, sometimes called “backpropagation,” sometim...
If you want to find out the current moon phase, take a look atthis page, courtesy of TimeandDate.com, where you can find out what phase the moon is currently in. You can also calculate what it will be by picking the date from the bottom of the page. Other apps can do this as ...
In summary, the conversation discusses how to calculate the location of a satellite in its orbit after a velocity increase, as part of a Hohmann transfer. The formulas for energy, speed, radius, and angular momentum are mentioned, and the process for determining the orbit parameters is ...
In reality, however, the distance between Earth and the moon is not constant due to the moon's elliptical orbit, so engineers must calculate the ideal orbits for sending a spacecraft from Earth to the moon. Like throwing a dart at a moving target from a moving vehicle, they must calculate...
In order to describe the position of a star, a planet or any other astronomical objects, we need to use a well defined coordinate system. They might be a horizontal system which uses azimuth angle and altitude as a coordinate system, an equatorial system which uses right ascension and declina...
After a rocket launches straight up, the rocket control mechanism uses the inertial guidance system (see sidebar) to calculate necessary adjustments to the rocket's nozzles to tilt the rocket to the course described in the flight plan. In most cases, the flight plan calls for the rocket to ...