Like our own moon, many Jovian moons exhibit what is called synchronous rotation. This means that they rotate at the same rate
A) that their host planet rotates
B) as all other moons around the host planet
C) that the host planet orbits about the Sun
D) that they orbit their host planet
C
You might also like to view...
A volume of helium gas has a temperature of 10°C. The same gas twice as hot has a temperature of
A) 20°C. B) 12°C. C) 283°C. D) 293°C. E) none of the above
Four identical particles (mass of each = 0.40 kg) are placed at the vertices of a rectangle (2.0 m × 3.0 m) and held in those positions by four light rods which form the sides of the rectangle. What is the rotational inertia of this rigid body about an axis that passes through the mid-points of the longer sides and is parallel to the shorter sides?
A. 2.7 kg?m2 B. 3.6 kg?m2 C. 3.1 kg?m2 D. 4.1 kg?m2 E. 1.6 kg?m2
A boat loaded with scrap iron floats in a swimming pool. When the iron is thrown overboard, the pool level will
A) rise. B) fall. C) remain unchanged.
Evidence that the recent rise in carbon dioxide concentration is due to human activity and not natural factors comes from
A) the amount of the rise in the atmospheric concentration tracks almost perfectly with the amount of carbon dioxide being released by industry B) estimates of changes in the amount of carbon dioxide from natural sources such as volcanoes and the oceans can account for no more than about 1% of the rise in the atmospheric concentration C) the ratio of carbon isotopes is consistent with the increase in carbon dioxide levels coming primarily from the burning of fossil fuels D) all of these constitute evidence