Which of the following can make a string of carbon atoms a living thing?
A) The ability of carbon to act as a living thing independently
B) The ability of oxygen to act as a living thing when combined with carbon
C) The transmission of information from one carbon molecule to another
D) The transfer of electrons from one carbon molecule to another
C
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An airplane that is flying level needs to accelerate from a speed of 2.00 × 102 m/s to a speed of 2.40 × 102 m/s while it flies a distance of 1.20 km. What must be the acceleration of the plane?
A) 4.44 m/s2 B) 2.45 m/s2 C) 7.33 m/s2 D) 5.78 m/s2 E) 1.34 m/s2
What fraction of the original uranium-235 should be left after 3.5 billion years?
A) 1/2 B) 1/4 C) 1/8 D) 1/32 E) 1/64
If the corona is so hot, why must we wait for a total solar eclipse to glimpse it?
What will be an ideal response?
Inelastic Collisions: A 1000-kg whale swims horizontally to the right at a speed of 6.0 m/s. It suddenly collides directly with a stationary seal of mass 200 kg. The seal grabs onto the whale and holds fast. What is the speed of these two sea creatures just after their collision? You can neglect any drag effects of the water during the collision.
A. 0.00 m/s B. 3.0 m/s C. 4.0 m/s D. 5.0 m/s E. 6.0 m/s