In radiation dosage, the factor that accounts for the measure of biological damage caused by different kinds of radiation is the
A. gray.
B. rad.
C. curie.
D. quality factor.
E. activity.
D. quality factor.
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Series/Parallel Circuits: For the circuit shown in the figure, the battery is ideal and all quantities are accurate to two significant figures. Find the current through (a) the 1.0-? resistor, (b) the 3.0-? resistor, and (c) the 4.0-? resistor?
What will be an ideal response?
A(n) ____ is a single conjecture that can be tested
a. hypothesis b. paradigm c. natural law d. model e. theory
Two current loops are coaxial and coplanar. One has radius a and the other has radius 2a. Current 2I in the outer loop is parallel to current I in the inner loop. The magnitude of the magnetic field at the center of the two loops is
A.
B.
.C.
.D.
.E.
.Liquid water cannot exist for very long on the surface of Mars today because
A) it gets rapidly destroyed by intense solar radiation B) its surface temperature is too high C) it rapidly reacts with the Martian surface to form peroxides D) its atmosphere is too thin