If two heaters are connected in parallel across the 120 volt source, the total power drawn from the source increases to 2400 watts
Indicate whether the statement is true or false
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Physics & Space Science
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The threshold of hearing is
a. 0 dB. b. 140 dB. c. 40 dB. d. 110 dB. e. 1 dB.
Physics & Space Science
The energy needed to remove an electron from the first excited state of a Li2+ ion is
a. 53 eV b. 31 eV c. 92 eV d. 122 eV e. 61 eV
Physics & Space Science
If the position versus time graph of an object is a horizontal line, the object is
A) moving with constant non-zero speed. B) moving with constant non-zero acceleration. C) at rest. D) moving with infinite speed. E) none of the above
Physics & Space Science
A proton, which moves perpendicular to a magnetic field of 0.60 T in a circular path of radius 0.080 m, has what speed? (qp = 1.6 × 10^-19 C and mp = 1.67 × 10^-27 kg)
a. 9.2 × 10^6 m/s c. 9.6 × 10^6 m/s b. 4.6 × 10^6 m/s d. 3.4 × 10^6 m/s
Physics & Space Science