A surveyor is trying to verify, from 2-D measurements, that he lives on the surface of a sphere whose radius is R. He measures the circumference C and area A of a circle of radius (on the surface) r = R. By considering the fractional difference in the values of C and A between the spherical and a flat surface, show that deviations from flatness are more easily detected by measuring circumferences rather than areas.

On a hot saturday morning while people are working inside, the air conditioner keeps the temperature inside the building at 22degreesc. at noon the air conditioner is turned off, and the people go home. the temperature outside is a constant 33degreesc for the rest of the afternoon. if the time constant for the building is 4 hr, what will be the temperature inside the building at 4 : 00 font size decreased by 2 upper p . font size decreased by 2 upper m .? at 6 : 00 font size decreased by 2 upper p . font size decreased by 2 upper m .? when will the temperature inside the building reach 24degreesc? 324281

The minute hand of a clock is 7cm long. calculate the displacement and distance covered by it from 8 am to 8.30 am pls answer fast i will surely mark as brainliest fast fast fast

Mechanical energy is when there are no forces causing an object to lose energy. a. increased b. conserved c. decreased d. doubled i need this answer ! .