When a hydraulic press is properly used it is capable of multiplying force input
A) true
B) false
C) true only in special cases, energy as well
Answer: A
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What happens when a main-sequence star exhausts its core hydrogen fuel supply?
A) The entire star shrinks in size. B) The core shrinks while the rest of the star expands. C) The core immediately begins to fuse its helium into carbon. D) The star becomes a neutron star.
The quark and antiquark in a meson are always of the same flavor
a. True b. False Indicate whether the statement is true or false
With which object would the wave nature of matter be significant?
a. A hard-thrown baseball b. A speeding truck c. A moving electron d. An orbiting planet
A 30-?F capacitor is charged to an unknown potential V0 and then connected across an initially uncharged 10-?F capacitor. If the final potential difference across the 10-?F capacitor is 20 V, determine V0.
A. 13 V B. 27 V C. 20 V D. 29 V E. 60 V