Elements that display some properties of both metals and nonmetals are called ______________
Fill in the blank(s) with correct word
semimetals, or metalloids
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LR Circuits: A 1.50-H inductor is connected in series with a 200-? resistor through an ideal 15.0-V dc power supply and an open switch. How much energy is contained in the inductor 20.0 ms after closing the switch?
A. 0.910 mJ B. 1.83 mJ C. 3.65 mJ D. 7.31 mJ E. 5.48 mJ
Starting from the core, the internal temperature of the Sun decreases gradually until reaching the photosphere.
Answer the following statement true (T) or false (F)
Two vectors, of magnitudes 20 mm and 50 mm, are added together. Which one of the following is a possible value for the magnitude of the resultant?
A) 10 mm B) 20 mm C) 40 mm D) 80 mm
Each pattern shown below would appear on a screen when monochromatic light of wavelength ? first passes through a narrow slit of width a and then strikes a screen. The darkest areas on the page represent the brightest areas on the screen. In which case does the slit have the greatest width?
a.
b.
c.
