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Motional emf: A 50-cm wire placed in an east-west direction is moved horizontally to the north with a speed of 2.0 m/s.  The horizontal component of the earth’s magnetic field at that location is 25 µT toward the north and the vertical component is 50ìT downward. What is the emf induced between the ends of the wire?

Circular motion of charges: An electron moving perpendicular to a uniform magnetic field of 3.2 × 10-2 T moves in a circle of radius 0.40 cm. How fast is this electron moving? (mel = 9.11 × 10-31 kg, e = 1.60 × 10-19 C)

Choose the best Lewis structure for CH2Cl2. Lewis.jpg

Choose the valence orbital diagram that represents the ground state of Zn. Orbital diagram.jpg

Determine the volume of an object that has a mass of 455.6 g and a density of 19.3 g/cm3.  

Place the following in order of increasing first ionization energy.N  F  As

What are possible orbitals for n = 3?

What answer should be reported, with the correct number of significant figures, for the following calculation? (433.621-333.9) x 11.90

What genus of protozoans can causes malaria?  

The watery fluid is produced by cells of the choroid plexus—areas which fills the subarachnoid space is known as…