A scientific model is considered valid if it is consistent with
A) a single observation by an individual scientist
B) the opinions of experts in the field
C) repeated observations made by an individual scientist
D) independent observations made by different scientists
D
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A string 40.0 cm long of mass 8.50 g is fixed at both ends and is under a tension of 425 N
When this string is vibrating in its third OVERTONE, you observe that it causes a nearby pipe, open at both ends, to resonate in its third HARMONIC. The speed of sound in the room is 344 m/s. (a) How long is the pipe? (b) What is the fundamental frequency of the pipe? What will be an ideal response?
A student has made the statement that the electric flux through one half of a Gaussian surface is always equal to the flux through the other half of the Gaussian surface. This is
a. never true. b. never false. c. true whenever enclosed charge is symmetrically located at a center point, on a center line, or on a centrally placed plane. d. true whenever no charge is enclosed within the Gaussian surface. e. true only when no charge is enclosed within the Gaussian surface.
The lunar maria are primarily composed of ________.
A. anorthosite B. olivine C. silicon dioxide D. basalt
When sea level is low
A) shallow marine habitats expand. B) low elevation areas of the continents are flooded. C) more continental land is exposed. D) climate conditions tend to be mild.