__________refer to bands in iron meteorite sections due to large metal crystals
A) Widmanstätten patterns
B) Oort clouds
C) Ice lines
D) Condensation sequences
A
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A vector of magnitude 3 CANNOT be added to a vector of magnitude 4 so that the magnitude of the resultant is:
a. 7 b. 3 c. 5 d. 1 e. Zero
Describe the process that causes a massive star to become a supernova
What will be an ideal response?
A 5-turn square loop (10 cm along a side, resistance = 4.0 W) is placed in a magnetic field that makes an angle of 30° with the plane of the loop. The magnitude of this field varies with time according to B = 0.50t2, where t is measured in s and B in T. What is the induced current in the coil at t = 4.0 s?
a. 25 mA b. 5.0 mA c. 13 mA d. 43 mA e. 50 mA
A charged particle moving with a certain velocity along the +x-axis enters a magnetic field pointing toward the +z-axis. Because of an electric field along the +y-axis the charge particle continues to move along the +x-axis
What is the sign of this particle? A) positive B) negative C) The particle could be either positive or negative. D) None of the other choices is correct.