Why did Galileo's observations of moons orbiting Jupiter disagree with geocentric model of the universe of his time?
a. The moons moved in non-circular orbits about Jupiter.
b. The moons did not appear to orbit the Sun.
c. The moons did not appear to orbit Earth.
d. The moons appeared to be too small, and therefore too far away, to be considered part of the solar system.
c
You might also like to view...
A cup of water with ice floating in it is at the level of the brim (near to overflowing). As the ice melts, what will the water in the cup do?
1.It will spill out of the cup. 2.It will drop in level. 3.It will stay at the same level, right at the cup's brim. 4.It is impossible to determine.
Multiple the equation for linear momentum by radial distance r and you have
A) rotational kinetic energy. B) angular momentum. C) rotational inertia.
An intercooler of an air compressor is to use a finned flat tube heat exchanger as shown in Figure 9-29. Compressed air at 100 psia, 130ºF passes through the tubes at 100 ft/s and air at 14.7 psia, 70ºF, and 100 ft/s passes around the tubes. Determine the convective heat transfer coefficient, the friction factor for the cooling air outside the tubes, and the overall convective heat transfer coefficient for the intercooler. Assume the inside dimensions of the flattened tubes are 0.105 in by 0.865 in.
Consider the situation described in problem E9T.10. If current flows in the loop, the magnetic field will exert magnetic forces on the various loop legs, and in some cases there may be a net magnetic force on the loop. If so, we will have to exert a force to keep the loop moving at a constant velocity. In each of the five cases, determine whether the net force we have to exert is The loop has not yet entered the magnetic field.
A. forward (in the +x direction).
B. backward (in the -x direction).
C. zero.
D. some other direction (specify).