If an atom in a crystal is acted upon by a restoring force that is directly proportional to the distance of the atom from its equilibrium position in the crystal, then it is impossible for the atom to have zero kinetic energy
A) True
B) False
A
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A(n) ____ is well supported (observationally and/or experimentally) system of rules and principles that can be applied to a wide variety of circumstances but that is not universally accepted
a. hypothesis b. paradigm c. theory d. model
It is generally easier to push an object once it is moving than when you are getting it started. This is because
a. sliding friction is zero. b. sliding friction is less than static friction. c. static friction is less than sliding friction. d. static friction is zero.
An ac series circuit has an impedance of 60 ? and a resistance of 30 ?. What is the power factor of this circuit?
A) 1.4 B) 0.50 C) 1.0 D) 0.71
A gray opaque body having surface temperature of 600 K and subjected to 1 kW/m^2 irradiation has an emissivity of 0.8. What is its radiosity?
What will be an ideal response?