If the frequency of an electromagnetic wave increases, does the wavelength increase, decrease, or stay the same?
What will be an ideal response?
The wavelength decreases because the speed of light stays the same.
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The vector sum of three co-planar forces
A. must be zero. B. must be perpendicular to one of the three. C. must be parallel to one of the three. D. must be perpendicular to the plane. E. may have any direction in the plane.
A successfully tested hypothesis may take on the status of a(n)
a. experimental result. b. theory. c. scientific law. d. concept. e. superior hypothesis.
An ideal solenoid that is 34.0 cm long is carrying a current of 2.00 A. If the magnitude of the magnetic field generated at the center of the solenoid is 9.00 mT, how many turns of wire does this solenoid contain? (?0 = 4? × 10-7 T ? m/
A) A) 860 B) 1590 C) 2320 D) 3180 E) 1220
Two current loops are coaxial and coplanar. One has radius a and the other has radius 2a. Current 2I in the outer loop is antiparallel to currentIin the inner loop. The magnitude of the magnetic field at the center of the two loops is
A.
B.
.C.
.D.
.E.
.