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5. Metals are malleable and display a positive charge when an electric current is passed through them. Nonmetals are brittle and display a negative charge when an electric current is
passed through them. One type of metal is aluminum. What are two characteristics of aluminum?
A. It's malleable and displays a positive charge
B. It's malleable and displays a negative charge
C. It's brittle and displays a negative charge
D. It's brittle and displays a positive charge

Which graph represents motion with an object with positive velocity that is located at a position of 3 meters at a time of 0 seconds? a) a b) bb eliminate c) c d) d

Consider a uniformly charged ring in the xy plane, centered at the origin. the ring has radius a and positive charge qdistributed evenly along its circumference. a)what is the direction of the electric field at any point on the z axis? . b)what is the magnitude of the electric field along the positive z axis? use k in your answer, where k=14πϵ0. d)the ball will oscillate along the z axis between z=d and z=−d in simple harmonic motion. what will be the angular frequency ω of these oscillations? use the approximation d≪a to simplify your calculation; that is, assume that d2+a2≈a2. express your answer in terms of given charges, dimensions, and constants

What can you increase the strength of an electromagnet by