Dark matter is known to be the source to dark energy
a. True
b. False
Indicate whether the statement is true or false
False
RATIONALE: The source to dark energy is not known.
You might also like to view...
A 1.0 kg mass is connected to a spring with a spring constant of 9.00 N/m. If the initial velocity is 0.0 cm/s and the initial displacement is 2.0 cm, then what is the maximum kinetic energy of the simple harmonic motion?
A. 0.014 J B. 0.0090 J C. 0.0075 J D. 0.0018 J E. 0.0012 J
Where do most of the elements heavier than iron form?
A. in the interstellar clouds B. in the interior of high-mass stars C. in supernova explosions D. in the interior of stars
Which of the following were found from Millikan's oil drop experiment?
a. the weight, and hence the mass, of the electron b. all of the above c. that quarks have charges that are fractions of the electronic charge d. the value of the electron's quantized charge
What would be the best explanation for the fact that most natural water has a pH of about 5.6?
A) Carbon dioxide reacts with water to form an acid. B) Air contains acid rain particles. C) Minerals that are dissolved in water are often acidic. D) Many salts that dissolve in natural waters make the water basic. E) none of the above