On the Kelvin scale the temperature is proportional to the average kinetic energy of the atoms or molecules whose temperature is being measured
Indicate whether the statement is true or false
T
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A charged particle is placed at rest in the middle of a vacuum chamber, an enclosure that has been emptied of all matter. Consider some point X near a particular corner of the chamber
Neglecting all influences other than the charged particle, what can be said regarding electric fields and electric forces at point X? A) The is an electric field at X, but no electric force. B) There is both an electric field and an electric force at X. C) There is neither an electric field nor an electric force at X. D) There is no electric field at X but there is an electric force at X. E) It is impossible to answer this question without knowing what kind of charge the particle has.
In a gaseous mixture of hydrogen and oxygen, the faster molecules on average are
A) hydrogen. B) oxygen. C) both the same D) not enough information
A 10-? resistor is connected to a 120-V ac power supply. What is the peak current through the resistor?
A) 12 A B) 17 A C) 0.083 A D) 0.12 A
A rad is that amount of radiation that:
a. is also known as a rem. b. deposits 10–2 J of energy into 1 kg of absorbing material. c. deposits 8.76 × 10^–3 J of energy into 1 kg of air. d. produces 2.08 × 10^9 ion pairs per cm3 in air under standard conditions.