Addition polymers are formed from
a. diacids only.
b. alkenes.
c. dialcohols only.
d. diacids and dialcohols together.
b
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The weak force that acts between an electron and a quark is caused by the exchange of:
a. photons. c. gravitons. b. W+, W–, or Z0 bosons. d. gluons.
A point source emits sound with a power output of 100 watts. What is the intensity (in W/m2) at a distance of 10.0 m from the source?
a. 7.96 × 10^?2 b. 7.96 × 10^?1 c. 7.96 × 10^0 d. 7.96 × 10^1 e. 7.96 × 10^?3
At equilibrium on a bathroom weighting scale, the downward pull of gravity on you is balanced by
A) your weight. B) an upward support force. C) your mass.
Suppose a uniform solid sphere of mass M and radius R rolls without slipping down an inclined plane starting from rest. The linear velocity of the sphere at the bottom of the incline depends on
A) the mass of the sphere. B) the radius of the sphere. C) both the mass and the radius of the sphere. D) neither the mass nor the radius of the sphere.