Which jovian planet has the most extreme seasonal changes, and why?
A) Uranus, because of its extreme axis tilt
B) Jupiter, because of its large mass
C) Saturn, because it has an axis tilt similar to Earth
D) Neptune, because of its varying distance from the Sun
A) Uranus, because of its extreme axis tilt
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Circular Motion of Charges: A proton is accelerated from rest through 0.50 kV. It then enters a uniform magnetic field of 0.30 T that is oriented perpendicular to its direction of motion.(a) What is the radius of the path the proton follows in the magnetic field?(b) How long does it take the proton to make one complete circle in the magnetic field?.
What will be an ideal response?
Why doesn't the uncertainty principle affect our ability to follow the path of a baseball?
A) The uncertainty principle applies only to subatomic particles. B) The uncertainties in all the individual atoms within the baseball cancel each other out. C) The uncertainties in the position and momentum of the baseball are so small in comparison to its size and total momentum that they are unnoticeable. D) The exclusion principle says that large objects are excluded from the consequences of the uncertainty principle. E) The uncertainty principle does not have anything to do with following the path of a particle or an object.
Due to the unusual thermal expansion properties of water, when a lake freezes during the winter, the water at the bottom of the lake is at ________ temperature than the water above it
A) the same B) a higher C) a lower
Suppose NASA wants a satellite to revolve around Earth 5 times a day. What should be the radius of its orbit if we neglect the presence of the Moon? (G = 6.67 × 10-11 N ? m2/kg2, Mearth = 5.97 × 1024 kg)
A) 1.44 × 107 m B) 0.69 × 107 m C) 7.22 × 107 m D) 2.11 × 107 m