If a wave has a frequency of 12 Hz, it has a period of
a. 1/12 s.
b. 3.5 s.
c. 144 s.
d. 12 s.
Answer: a. 1/12 s.
You might also like to view...
If the universe is closed and finite, then
a. the universe will expand forever b. the universe has a center c. the universe has an edge d. none of the above
You see a leaf falling to the ground with constant speed. When you first notice it, the leaf has initial total energy PEi + KEi. You watch the leaf until just before it hits the ground, at which point it has final total energy PEf + KEf. How do these total energies compare?
a) PEi + KEi > PEf + KEf b) PEi + KEi = PEf + KEf c) PEi + KEi < PEf + KEf d) impossible to tell from the information provided
Comets are not actually members of the solar system, but have been captured by the Sun
Indicate whether the statement is true or false
A room has a volume of 50 m3 and is filled with air of an average molecular mass of 29 u. What is the mass of the air in the room at a pressure of 1.0 atm and temperature of 26°C? R = 0.082 L/atm/mol/K
a. 180 kg b. 42 kg c. 59 kg d. 30 kg e. 23 kg