While the Copernican model was simpler than Ptolemy's, it was no more accurate in predicting planetary behavior at first. How did Kepler improve it?
What will be an ideal response?
Like Ptolemy, Copernicus believed all orbits to be perfectly circular; Kepler's ellipses, combined with the heliocentric model, made planetary motion much more predictable.
You might also like to view...
Which of the following has NOT yet been observed in space?
A) formaldehyde B) methyl alcohol C) DNA D) ammonia E) hydrogen cyanide
A marathon race is 26 mi and 385 yd long. Estimate how many strides would be required to run a marathon. Assume a reasonable value for the average number of feet/stride
A) 4.5 × 104 strides B) 4.5 × 103 strides C) 4.5 × 105 strides D) 4.5 × 106 strides
The second law of thermodynamics implies
that a) heat can be used to do work only if a thermal reservoir at a lower temperature is available. b) the total energy of a body is the sum of kinetic energies of all its molecules. c) bodies cool at rates proportional to their temperature excess above their surroundings. d) energy cannot be destroyed.
Ethylene glycol, at 100ºC, is cooled along a vertical flat plate at 20ºC. The plate is 1 m high and 0.5 m wide. Estimate the heat transfer.
What will be an ideal response?