A ventilation fan with a moment of inertia of 0.0340 kg·m2 has a net torque of 0.110 N m applied to it. If it starts from rest, what kinetic energy will it have 10.4 s later?
a. 1.84 J b. 19.2 J
c. 33.6 J d. 38.5 J
b
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The applied magnetic field that it is necessary to reduce the intensity of magnetization of a ferromagnetic material to zero after saturation in the forward direction is the _________field.
Fill in the blank(s) with the appropriate word(s).
The twinkling of the stars is a result of atmospheric
A) reflection. B) refraction. C) scattering. D) dispersion. E) aberrations.
Chemically based extraterrestrial life
A) will not need to store information B) may not use DNA to store information but will very likely use a molecule with a similar function C) will certainly use DNA to store information, but with different nucleotides D) will certainly use DNA to store information
Many people think that it's no big deal to separate their recyclables, while others think the opposite. Imagine being in both these persons' minds, and discuss how recyclable separation could seem easy or hard to that person
What will be an ideal response?