When an antimatter particle meets its matching particle of normal matter, the two particles annihilate each other and convert their mass back into energy in the form of two _____
A) alpha rays
B) cosmic rays
C) gamma rays
D) beta rays
C
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In general, which of the following is usually the strongest bond?
A) van der Waals bond B) ionic bond C) hydrogen bond
Does the slope of the graph in Procedure 1 have units? Why or why not?
A metallic sphere A of radius 1 cm with charge 450 nC hangs on an insulating thread inside an uncharged thin metallic spherical shell B of radius 2 cm. Next, A is made temporarily to touch the inner surface of B. How is the charge then shared between them?
If the voltage across a circuit element has its maximum value when the current in the circuit is zero, which of the following statements must be true?
1.The circuit element is a resistor. 2.The circuit element is a capacitor. 3.The circuit element is an inductor. 4.The current and voltage are 90° out of phase. 5.The current and voltage are 180° out of phase.