The darkness of the night is due in part to the cosmological redshift, with the energy of the most distant objects diluted in the universal expansion
Indicate whether the statement is true or false
TRUE
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The normal mode of a resonating system is sinusoidally disturbed at a frequency . Assume that , where is the normal mode’s natural frequency. (a) What is the amplitude of the normal mode’s oscillation compared to its amplitude in the limit that the disturbance frequency goes to zero if is about 1.4 ?
A. Roughly zero
B. Roughly 
/30
C. Roughly /1.4
D. Roughly
E. Roughly 1.4
F. Roughly 30
T. Other (specify)
An object 2.0 cm tall is placed 24. cm in front of a convex mirror whose focal length is 30. cm. (a) Where is the image formed? (b) How tall is it?
What will be an ideal response?
How do your measurements in Procedure 2 predict the way that the velocity of a wave in a rubber cord varies with the tension in the cord?
It is possible for a medium-mass star to collapse and form a white dwarf, but no planetary nebula
a. True b. False Indicate whether the statement is true or false