Scientists from the National Aeronautics and Space Administration (NASA) envision that, in
the future, they will be able to create a 'space lift'. They plan to drop a ribbon-like material
called carbon nanotubes 100,000 km from a satellite in space to a platform in the Pacific
Ocean. From this platform, lifts attached to the carbon nanotubes would be able to transport
people into space.
(a) For the 'space lift' to work, the carbon nanotube must possess certain properties. In the
table below, fill in the reasons why the carbon nanotubes must have the given properties.
Physical property
Reason
Light
Strong
High melting point
(b) Given the physical properties of carbon nanotubes, suggest other applications for this
material.

Acommon technique in analysis of scientific data is normalization. the purpose of normalizing data is to eliminate irrelevant constants that can obscure the salient features of the data. the goal of this experiment is to test the hypothesis that the flux of light decreases as the square of the distance from the source. in this case, the absolute value of the voltage measured by the photometer is irrelevant; only the relative value conveys useful information. suppose that in part 2.2.2 of the experiment, students obtain a signal value of 162 mv at a distance of 4 cm and a value of 86 mv at a distance of 5.7 cm. normalize the students' data to the value obtained at 4 cm. (divide the signal value by 162.) then calculate the theoretically expected (normalized) value at 5.7 cm.