A tank with a volume of 0.200 m3 contains 27.0°C helium gas at a pressure of 63.5 atm. How many balloons can be blown up if each filled balloon is a sphere 30.0 cm in diameter at 27.0°C and absolute pressure of 1.20 atm? Assume all the helium is transferred to the balloons
a. 1180 balloons
c. 749 balloons
b. 884 balloons
d. 375 balloons
C
Physics & Space Science
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Determine the potential difference, VA?VB, in the circuit segment shown below when I = 2.0 mA and Q = 50 ?C.
A. ?40 V B. +40 V C. +20 V D. ?20 V E. ?10 V
Physics & Space Science
The smaller the frequency of light, the smaller the ______________ of its photons
a. wavelength b. speed c. mass d. energy
Physics & Space Science
Overall, what is our most accurate technique for measuring the distance to a nearby star?
A) stellar parallax B) radar ranging C) Hubble's law D) Cepheid variables
Physics & Space Science
How many types of quarks are there, and how many types of antiquarks?
A.) 24 quarks and 24 antiquarks. B.) 12 quarks and 6 antiquarks. C.) 6 quarks and 6 antiquarks. D.) 3 quarks and 3 antiquarks. E.) 30 quarks and 0 antiquarks.
Physics & Space Science