The geocentric model, in all of its complexity, survived scientific scrutiny for almost 1,400 years. however, in modern astronomy, scientists seek to explain the natural and physical world we live in as simply as possible. the complexity of ptolemy's model was an indicator that his theory was inherently flawed. why, then, was the geocentric model the leading theory for such a long time, even though the heliocentric model more simply explained the observed motions and brightness of the planets?
a) the heliocentric model did not make noticeably better predictions than the geocentric model.
b) the geocentric model conformed to both the philosophical and religious doctrines of the time.
c) ancient astronomers did not observe stellar parallax, which would have provided evidence in favor of the heliocentric model.
d) the complexity of the geocentric model was appealing to most ancient astronomers.
e) from earth, all heavenly bodies appeared to circle around a stationary earth.

State the right hand rule of the direction of magnetic field in a conductor carrying current

1134567 a jet with mass m = 1.1 ă— 105 kg jet accelerates down the runway for takeoff at 2 m/s2. 1) what is the net horizontal force on the airplane as it accelerates for takeoff? 2.2*10^5 n your submissions: 2.2*10^5 computed value: 220000submitted: saturday, january 26 at 2: 41 pm feedback: correct! 2) what is the net vertical force on the airplane as it accelerates for takeoff? 0 n your submissions: 0 computed value: 0submitted: saturday, january 26 at 2: 41 pm feedback: correct! 3) once off the ground, the plane climbs upward for 20 seconds. during this time, the vertical speed increases from zero to 21 m/s, while the horizontal speed increases from 80 m/s to 95 m/s. what is the net horizontal force on the airplane as it climbs upward? n 4) what is the net vertical force on the airplane as it climbs upward? n 5) after reaching cruising altitude, the plane levels off, keeping the horizontal speed constant, but smoothly reducing the vertical speed to zero, in 13 seconds. what is the net horizontal force on the airplane as it levels off? n 6) what is the net vertical force on the airplane as it levels off?

An initially unpolarized light if intensity 500 w/m^2 passes through four polarizers. the transmission axis between adjacent polarizers is 45∘. what percentage of the initial intensity is transmitted by the system?