A rifle bullet shot horizontally has a vertical acceleration of ______________
Fill in the blank(s) with correct word
9.8 m/s2, or 32 ft/s2 (gravity)
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The change in internal energy of adding 100 joules to a system that does 60 joules of work is
A) 0 J. B) 40 J. C) 60 J. D) 100 J. E) none of the above
When a hydrogen atom absorbs a photon that raises it to the n = 7 state, what is the greatest number of photons that can be emitted by that atom as it returns to the ground state?
a. 6 b. 7 c. 8 d. 14 e. The correct answer is not given.
Particle A (mass = m, charge = Q) and B (mass = m, charge = 5 Q) are released from rest with the distance between them equal to 1.0 m. If Q = 12 ?C, what is the kinetic energy of particle B at the instant when the particles are 3.0 m apart?
A. 8.6 J B. 3.8 J C. 6.0 J D. 2.2 J E. 4.3 J
An ice cube floating in a glass of water contains many air bubbles. When the ice melts, the water level
A) rises. B) falls. C) remains unchanged.