Answer the following statement(s) true (T) or false (F)
1. An object can have a constant speed and still be accelerating.
2. An object’s acceleration vector always points in the direction that it is moving.
3. An object can have zero velocity (at an instant) and still be accelerating.
4. An object’s x-velocity can be positive at the same time that its x-acceleration is negative.
1. TRUE
2. FALSE
3. TRUE
4. TRUE
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How do medium stars die? Their remnants are
A: nova then white dwarf B: supernova then white dwarf C: planetary nebula then white dwarf D: supernova then neutron star E: supernova then black hole
A mass is attached to a vertical spring and bobs up and down between points A and B. Where is the mass located when its kinetic energy is a maximum?
A) at either A or B B) midway between A and B C) one-third of the way between A and B D) one-fourth of the way between A and B E) none of the above
Natural line broadening can be understood in terms of the
A) de Broglie wave length. B) uncertainty principle. C) Schrodinger wave equation. D) Pauli exclusion principle. E) quantum numbers.
The internal energy of a monatomic ideal gas is equal to which of the following?
a. (3/2)PV c. 3T/P b. (3/2)nT/V d. none of these