What Is Ultraviolet Light? (with Pictures)

Most of the ultraviolet light on Earth comes from the sun. When UV light reaches the atmosphere, it reacts with oxygen molecules to create ozone. This reaction is what causes the ozone layer to form above the Earth. The ozone layer can be anywhere from six to 31 miles (10 to 50km) above sea level. Almost all of the short wave ultraviolet light is absorbed by the ozone layer before it can reach the Earth's surface.

How high do you have to be from the Earth's surface to experience microgravity?

Well, you do not experience microgravity because you are high up. Microgravity is experienced either by (A) objects in earth orbit or (B) objects in a state of free fall, such as skydiving.It is not practical to orbit the Earth too close to the surface; the resistance from the atmosphere is too high for orbits below 100 Kms altitude. While there is no minimum height necessary to experience microgravity as such, there is a minimum height below which spacecraft cannot safely orbit. Microgravity that's experienced by Skydivers (or the people in the picture attached to the question) can be achieved anywhere in the atmosphere, but that experienced by Astronauts can only be achieved above the minimum safe orbiting altitude. NASA - What is Microgravity? (Technically, being in orbit is the same as being in free-fall, but the reason behind this equivalence is not central to the question. )How high do you have to be from the earth's surface to experience microgravity?

If the ISS is in an orbit that is approximately 350 km above the Earth's surface...?

the force of gravity when on the space station is less than when on the earth's surface

Suppose a shuttle were launched from a launchpad on the Moon instead of the Earth's surface. What changes...?

its acceleration will be alot higher than what it is when we launch it from earth! it can even go to place much far away! becase less energy is required to break gravitational pull! yes it will work....solid rocket booster engines do not require oxygen and liquid rockets carry their supply of oxygen!

A falling star very near the earth's surface, before it burns out...what colors is it?

colours will depend on which gases burned the make up of the "falling star" and the atmosphere layer it burned up in. gases burn at different temperatures and give of different colours

What percentage of the acceleration at Earth's surface is the acceleration due to gravity at the position of a satellite located 300 km above Earth?

Assuming you intended 300 to have three digit precision, it would be 8.94 m/s, or 91.2% of sea-level g

what do map makers use to create a flat representation of earth's surface?

They "extend" that surface and use one of many "projections" invented in a long period of map drawing...There are always minor discrepancies in every map, even if it's made with the help of satelites

Would a centrifugal flyweight governor system slow down the descent of an object that is free falling down to the Earth's surface? (Revised design) [closed]

Once the cylinder is released and starts to accelerate downward, the rotating flyweights should pivot upwards to a certain degree (as shown in the drawing) and should act as a drag on each of the motors' rotor shafts and thus a drag on the falling cylinderNo, there is no reason for them to pivot upwards. The gravity pulls the flyweights with the same acceleration as it does the box.Another way to think about it: being inside a falling box is equivalent to a box in zero gravity. In zero gravity the flyweights would remain in in the 90 degree orientation.

A projectile with mass of 572 kg is launched straight up from the Earth's surface with an initial speed vi. Wh?

The force Fx , between the mass and earth at a distance x = -GMe m /x Me = Earth mass , m= projectile mass Work required to raise from R to 5R is [R , 5R] - Fx dx = GMe m[ 1/R - 1/5R] = 4/5 Gm Me / R = gain in K.E (Work - Energy Theorem , W= K.E) = 1/2m V V= (8/5GMe/R) , substitute the values This shows a mosquto or Elephant can be raised with the same Work done (independent of m)