Because of their greater luminosity, RR Lyrae stars can be used at greater distances than can long-period Cepheids

Indicate whether the statement is true or false


FALSE

Physics & Space Science

You might also like to view...

A long solenoid (diameter = 5.0 cm) is wound with 960 turns per meter of thin wire through which a current of 300 mA is maintained. A wire carrying 12 A is inserted along the axis of the solenoid. What is the magnitude of the magnetic field at a point 2.0 cm from the axis?

A. 0.41 mT B. 0.48 mT C. 0.38 mT D. 0.56 mT E. 0.24 mT

Physics & Space Science

A hole is punched in a full milk carton, 10 cm below the top. What is the initial velocity of outflow?

A. 1.4 m/s B. 2.0 m/s C. 2.8 m/s D. 3.9 m/s E. 4.2 m/s

Physics & Space Science

What value of B should be used in a velocity selector to separate out 2.0-keV protons if E is fixed at 80 kV/m?

A. 0.18 T B. 0.11 T C. 0.15 T D. 0.13 T E. 0.23 T

Physics & Space Science

We can determine proportions of body fat because:

a. body fat is denser than muscle. b. body fat is less dense than muscle. c. muscle is less dense than water. d. body fat has the same density as water. e. body fat and muscle are both less dense than water.

Physics & Space Science