A 120-? laboratory resistor is rated at 0.25 W. What is the safe current through the resistor?

A) 30 A
B) 2.1 mA
C) 22 mA
D) 46 mA


D

Physics & Space Science

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Mathematical models indicate that ____ galaxies are produced by high speed collisions in which a smaller galaxy passes through another galaxy almost perpendicular to the disk of the galaxy

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A stretched string is observed to vibrate in three equal segments when driven by a 480 Hz oscillator. What is the fundamental frequency of vibration for this string?

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The latent heat of vaporization of sweat is 2 430 kJ/kg at body temperature. Assuming that sweating is the only mechanism for dissipating heat, what would be the maximum sustainable metabolic rate if 75% of the energy used by the body goes into waste heat? The body can produce up to 1.5 kg of sweat per hour

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