Any nuclear process that leads ______________ on the "mass defect per nucleon versus mass number" curve will release nuclear energy
a. right
b. up
c. down
d. left
b
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Which is the most massive star?
A. Star of 0.5 solar masses B. Coolest possible main sequence star C. Type B main sequence star D. Type G main sequence star E. Hottest possible main sequence star
A mixture of red and green pigments appears
A) orange. B) yellow. C) magenta. D) blue. E) muddy-brown.
Why is the radiation so intense in the region that traces Io's orbit around Jupiter (the Io torus)?
A) The region is full of gases that become ionized after they are released from volcanoes on Io. B) An orbital resonance between Io, Europa, and Ganymede makes the radiation intense. C) Jupiter's strong magnetic field makes the radiation intense everywhere, and the region around Io is no different than any other region. D) Io's gravity allows this region to capture huge numbers of charged particles from the solar wind.
A wheel rotating about a fixed axis has a constant angular acceleration of 4.0 rad/s2 . In a 4.0-s interval the wheel turns through an angle of 80 radians. Assuming the wheel started from rest, how long had it been in motion at the start of the 4.0-s interval?
a. 2.5 s b. 4.0 s c. 3.5 s d. 3.0 s e. 4.5 s