If the redshift of a quasar were 3, at what wavelength would the 486.1-nm line of hydrogen appear in the quasar's spectrum?
What will be an ideal response?
1944.4 nm
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Center of Mass: A 60.0-kg man stands at one end of a 20.0-kg uniform 10.0-m long board. How far from the man is the center of mass (or center of gravity) of the man-board system?
A. 1.25 m B. 2.50 m C. 5.00 m D. 7.50 m E. 9.00 m
The volume of a gas is inversely proportional to the absolute pressure applied to it when the temperature is kept constant
Indicate whether the statement is true or false
What type of prevention seeks to minimize the severity of the illness or the damage due to an injury-causing event once the event has occurred?
What will be an ideal response?
The lowest-pitch tone to resonate in a pipe of length L that is closed at one end and open at the other end is 200 Hz. Which one of the following frequencies will NOT resonate in the same pipe?
A) 400 Hz B) 600 Hz C) 1000 Hz D) 1400 Hz E) 1800 Hz