Giant stars are members of luminosity class III
Indicate whether the statement is true or false
T
You might also like to view...
According to general relativity, a photon emitted by a star
A) loses energy. B) reduces in frequency. C) is red-shifted. D) all of the above E) none of the above
During a lecture demonstration, a professor places two coins on the edge of a table. She then flicks one of the coins horizontally off the table, simultaneously nudging the other over the edge. Describe the subsequent motion of the two coins, in particular discussing whether they hit the floor at the same time
A. Both coins will hit the ground at the same time because the vertical component of the velocity is exactly the same for both coins. However, the horizontal component of the velocity are the same for the 2 coins, and so, the both coins will hit the ground at the same distance from the table. B. Both coins will hit the ground at the same time because the vertical component of the velocity is exactly the same for both coins. However, the horizontal component of the velocity are different for the 2 coins, and so, the first coin will hit the ground at a farther away distance from the table. C. Both coins will hit the ground at the same time because the horizontal component of the velocity is exactly the same for both coins. However, the vertical component of the velocity are different for the 2 coins, and so, the first coin will hit the ground at the same place as the second coin. D. The two coins will fall at the same rate. The nudged one will fall straight down, whereas the flung one will fall in a half parabola. Both coins though will land at the same time, because when they land is determined by their initial vertical velocity, and both coins had an initial vertical velocity of 0 m/s.
Meredith sits in the middle of a merry-go-round that her brother Kiel is pushing. If Meredith moves to the outer edge of the merry-go-round, it will
A. speed up. B. slow down. C. spin at the same rate.
During a lunar eclipse the Moon's phase must be
A) 3rd quarter. B) 1st quarter. C) new. D) full.