A low-luminosity star has a small and narrow ____, whereas a high-luminosity star has a large and wide one
a. UV range
b. life capability
c. habitable zone
d. adaptable zone
e. water hole
c
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What force is necessarily applied to the 2.5 cm-diameter piston of a hydraulic lift system in order to lift a truck of mass 1210 kg upon a platform supported by a 15 cm-diameter piston?
A. 33.6 N B. 1980 N C. 330 N D. 494 N E. 4850 N F. 202 N
Approximately how fast is a person located at the Earth's equator moving around Earth's axis due to the rotation of the Earth?
A) 17,000 km/hr B) 1700 km/hr C) 170 km/hr D) 17 km/hr E) not moving at all
A 10-mH inductor is connected in series with a 10-ohm resistor, a switch and a 6-volt battery. What is the time constant of the circuit? How long after the switch is closed will the current reach 99 percent of its final value?
The larger the ripple voltage, the better the filter.
a. True b. False