A student builds a simple circuit with a single resistor of resistance 2R2R2, R and current III, and measures an electric potential difference of \Delta V_1ΞV 1 β delta, V, start subscript, 1, end subscript across the resistor. Then, the student decreases the current through the circuit to \dfrac{I}{2} 2 I β start fraction, I, divided by, 2, end fraction.
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Which type of microscope would allow the viewer to see ribosomes inside a cell?
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The focal length of a relaxed human eye is approximately 1.7 cm. when we focus our eyes on a close up object, we can change the refractive power of the eye by about 16 diopters. (a) does the refractive power of our eyes increase or decrease by 16 diopters when we focus closely? explain. (b) calculate the focal length of the eye when we focus closely.
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An astronaut on the moon throws a baseball upward. the astronaut is 6 ft, 6 in. tall, and the initial velocity of the ball is 3030 ft per sec. the height s of the ball in feet is given by the equation s equals negative 2.7 t squared plus 30 t plus 6.5s=β2.7t2+30t+6.5, where t is the number of seconds after the ball was thrown. complete parts a and b.
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A student builds a simple circuit with a single resistor of resistance 2R2R2, R and current III, and...
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