Which of the following is not a fundamental quantity?
a. Weight
b. Length
c. Time
d. Mass
a
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Interstellar dust grains start the process of condensation in the early solar nebula
Indicate whether the statement is true or false
If the temperature of a fixed amount of an ideal gas is increased, it NECESSARILY follows that
A) the pressure of the gas will increase. B) the volume of the gas will increase. C) the speed of the gas molecules will increase. D) All of the above statements are correct.
A person who weighs 550 N empties her lungs as much as possible and is then completely immersed in water (of density 1000 kg/m3 ) while suspended from a harness. Her apparent weight is now 21.2 N. What is her density?
A) 1040 kg/m3 B) 1030 kg/m3 C) 1050 kg/m3 D) 56.1 kg/m3 E) 960 kg/m3
A superconducting wire carries a current of 104 A. Find the magnetic field at a distance of 0.25 m from the wire. (µ0 = 4p × 10^-7 T×m/A)
a. 1.6 × 10^-2 T c. 8 × 10^-3 T b. 2 × 10^-3 T d. 3.2 × 10^-2 T