What are the three main parts that gaia is composed of?

the astrometry instrument, the infrared light instrument, and the pulsar camera

detailed drawings, the pulsar instrument, and the luminosity dust

the astrometry instrument, the photo-metric instrument, and the radial-velocity spectrometer

the photometric instrument, the star catalogue, and the quasars

GAIA is composed of the astrometry instrument, the photo-metric instrument, and the radial-velocity spectrometer.

Option C

Explanation:

European Space Agency have formed an observatory in 2013 related to space and it is named as GAIA. Mostly that observatory is designed from astrometry. Astrometry is the measure of positions, distances and motion of stars. So the payload of GAIA is composed of three main parts.

They are astrometry instrument for finding the location of stars, photo-metric instrument for luminous measurements and radial velocity spectrometer for velocity measurement. So all the three instruments were used to analyze the position, brightness and speed of the motion of stars in the space.

close lines strong magnet less close weaker

initial speed when it is dropped is 150 ft/s

now at the same moment the acceleration due to gravity is perpendicular to its velocity

so as we know that

now we have centripetal acceleration a = 32 ft/s^2 as its perpendicular to velocity

while tangential acceleration at the same moment will be zero

so

now radius of curvature is given as

so the radius of curvature just after it is dropped is 703.125 ft