Answer:
Clouds of gas and dust as well as new star formation are typically seen in Spiral galaxy
Explanation:
The ingredients for star formation are gas and dust, a spiral galaxy is a group of stars that are together as a consequence of the gravitational pull between them and, as the name said it, has a spiral shape.
They are composed for a central bulge, a disk (in which a spiral arms structure can be seen), gas and dust. Because of the presence of gas and dust, star formation is possible.
Cognitive psychologists sometimes called brain scientists, study how the human brain works and how we think, remember and learn
Answer:
increases dramatically
Explanation:
due to resistance tends to prevent the motion of a body. When speed increases, the particles of air are set into motion and this energizes them. More air gains increased acceleration and they collide with a body. This initiates a resistance against the motion of such body. for instance, wind resistance increases rapidly as speed increases.
Answer: 0.102m/s^2
Explanation:
velocity of ball = 6.15 m/s
Time taken for ball to roll = 1.00 minute
Convert 1.00 minute to seconds
(Since 60 seconds = 1 minute, the time taken for ball to roll = 60 seconds
Acceleration of the ball = ? (Let unknown value be Z)
Since acceleration is the rate of change of velocity per unit time
i.e Acceleration = Velocity / Time
Z = (6.15 m/s / 60 seconds)
Z = 0.1025m/s^2
Round Z to 3 significant digits (Z = 0.102m/s^2)
Thus, the acceleration of the ball is 0.102 metres per second square