If Triton has a subsurface ocean, it will most likely consist of
A) water mixed with ammonia, methane, or other melted ices
B) liquid nitrogen
C) liquid ammonia and methane
D) liquid water
A
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Groombridge 34 is an M1 V star. Based on this information, which of the following are true? I. Groombridge 34 has a surface temperature that is less than the Sun. II. Groombridge 34 has a mass that is greater than that of the Sun. III. Groombridge 34 is less luminous than the Sun. IV. Groombridge 34 is located near the middle of the H-R diagram
a. I & II b. II & IV c. I & IV d. I & III e. II & III
How can a charged object attract an uncharged object made of non-conducting material?
a. The charges in the uncharged object can become polarized. b. The uncharged object must somehow gain a like charge. c. Attraction of an insulator is not possible. d. The uncharged object must somehow gain an unlike charge.
In a swell, wavelength is constant. As a swell touches bottom, the wavelength
A) increases and velocity decreases. B) shortens and velocity decreases. C) shortens and velocity increases. D) and velocity increase.
Type II supernovae are believed to occur when the cores of massive stars collapse
Indicate whether the statement is true or false