A person on earth is observing the moon, which is 283,860 miles away. the moon has a diameter of 2160 miles. what is the angle in degrees spanded by the moon in the eye of the beholder?

@Jose Zavala "How long light from moon to earth?":
1.28 Seconds.
Distance Earth to moon =
384402 km, 238856 miles, or 384402000 meters.
Speed of light symbol 'c' in vacuo = 300*m/sec
384402000/300000000=1.28.
Radio-waves also travel at c in space, so communication is delayed at least 1.28 s each way.

However, Earth is not quite a sphere. The planet's rotation causes it to bulge at the equator. Earth's equatorial diameter is 7,926 miles (12,756 kilometers), but from pole to pole, the diameter is 7,900 miles (12,720 km) - a difference of only 40 miles (64 km)

Hope this helps

Hope this helps!

Mass: 86,810,300,000,000,000 billion kg (14.536 x Earth)
Equatorial Diameter: 51,118 km
Polar Diameter: 49,946 km
Equatorial Circumference: 159,354 km
Known Moons: 27
Notable Moons: Oberon, Titania, Miranda, Ariel & Umbriel more info
Known Rings: 13
Orbit Distance: 2,870,658,186 km (19.22 AU)
Orbit Period: 30,687.15 Earth days (84.02 Earth years)
Surface Temperature: -197 °C
Discover Date: March 13th 1781 Online Virus Removal and PC Help Contest

You will be lighter on the moon than on earth because the gravitational pull is different on the moon than on earth. That gravitational pull difference will make the weight different. A 100 lb person will weigh about 16 lbs on the moon.

No, sorry. The mean inclination of the lunar orbit relative to the ecliptic plane is merely 5.145 degrees. Just like the sun it rises in general eastern direction and sets in western direction, it will not touch the horizon in the south or north of any location on earth.

This result is independent of the moon phase which is solely determined by sun, moon and earth's relative positioning. The dark (or new moon) is simply not illuminated by the sun on the section visible from earth but still rises in the east.

About 61.665 meters.

The sun lights up half of the moon. Depending on where the moon is in its orbit around the earth, we see anywhere from all of the lit half (full moon) to none of it (new moon). See http://en.wikipedia.org/wiki/Lunar_phase

Depends on terrain, trees, hills, buildings, pole barns, etc. Those little throw away radios that claim up to 30 miles cannot. The curve of the earth changes every 22.5 miles. So, I often say, 0.5 miles to 5 miles on a 4-5 watt business band walkie talkie with a fully charged battery. It is often more, but could be less. Please be more specific. They talked to the Moon and back on 1 watt.

I assume you want a picture of the moon and don't particularly care what the sky looks like.
Consider a full moon. Just what are you taking a picture of? It's a landscape, right? Mountains, craters, etc. All under a bright midday sun without a cloud in the sky (the sky on the moon, not your sky). So what if the moon's a quarter of a million miles away from you, it's under the same sun. Yeah, it's a quarter of a million miles farther from the sun, but given the nearly one hundred million miles between the earth and the sun, the difference is negligible.
There's an old photography rule called the "Sunny-16 Rule." It says that the proper exposure under sunny conditions is f/16 at a shutter speed that is a reciprocal of the film's ISO rating. So, at ISO 200 the proper exposure would be f/16 at 1/200 second (or equivalent, such as f/11 at 1/400 second). You'll have to switch the camera to the Manual exposure mode to do this. Ignore anything the camera's light meter says.
Use this as a starting guideline. Take a picture and review it on the screen. Don't worry about the sky going pure black. You don't want the highlights to get blown out, or the moon will look like a white blob.

With these pool cleaners, that is almost always going to be a problem with your hose balance. To determine if your balance is correct, turn off the pump and observe the cleaner. Hose balance is correct if the cleaner's seal rests flat on the pool floor and drive tubes make a 45 degree angle with the floor. If the hose rises toward the surface at an angle greater than 45 degrees, move the weights closer to the cleaner or move the first two weights closer to each other. If the hose sags at less than a 45 degree angle, move the weights away from the Kreepy Krauly or separate the first two weights away from each other.