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Problem Solving: LightSail 2 BOOM LENGTH TOTAL SAIL AREA SIZE REFERENCE 5.6 x 5.6 m (18.4x...
Problem Solving: LightSail 2 LightSail 2 was a satellite that was designed to use solar radiation to change its altitude as it circled Earth. The spacecraft had a mass of 5.0kg. It was originally launched by a rocket with its sail closed, and established an orbit at an altitude of 720 km above Earth’s surface. Then it deployed its sail, which had an area of 32m2. Assume the sail is completely reflective. 1) After a full month of “½...
In Example 34.6, we imagined equipping 1950DA, an asteroid on a collision course with the Earth, with a solar sail in hopes of ejecting it from the solar system. We found that the enormous size required for the solar sail makes the plan impossible at this time. Of course, there is no need to eject such an object from the solar system; we only need to change the orbit. A much more pressing problem is Apophis, a 300-m asteroid that may be...
The region around the Earth is filling up with space junk such as old satellites. One idea for cleaning up space involves using sails that create drag (see figure below) Perhaps one day satellites will be equipped with sails that are deployed at the end of their missions. The NASA mission NanoSail-D was launched in 2010 to test this idea. This problem compares the drag on a solar sail due to the Earth's upper atmosphere with the force exerted on...
4. A child sitting 2 meters from the center of a merry-go-round moves at a speed of 2 m/s. Calculate (A) the centripetal acceleration of the child and (B) the horizontal force exe child (mass 22.5 kg). (A) 1 m/s2 b. 2 m/s2 c. 3 m/s2 d. 4 m/s2 e. 5 m/s2 a. 22.5 N b. 45 N c. 67.5 N d. 90N e. 112.5 N 5. If Earth was moved to a new orbit that was twice as far...
Procedure: Materials: 1. apparatus 2. 2 pieces of metal track 3. plastic or metal ball 4. timer 5. meter stick 6. micrometer 7. 2 photogates Assemble your ramp as shown in Figure (1) in the next page. Then set up photogates in location 2 and 3. Measure the diameter (in m) of the metal balls (you will need it for speed calculations). Then, measure the weight (mass) of the ball (in kg). To have a better measurement of the time,...