Earth is farthest from the Sun in July and closest to the Sun in January. During which Northern Hemisphere season is Earth moving fastest in its orbit?
A) Spring
B) Summer
C) Fall
D) Winter
D
You might also like to view...
Which three branches of science are most important in our study of life in the universe?
A) physics, mathematics, and astronomy B) astronomy, planetary science, and biology C) planetary science, biology, and mathematics D) biology, mathematics, and physics
A pendulum bob on a long string is raised 1.1 m above its lowest point. When it is let go, we can determine the speed of the bob as it passes through its lowest point even if we have no idea of its mass
What will be an ideal response?
If one star has a temperature of 4000 K and another star has a temperature of 40,000 K, how much more energy per second will the hotter star radiate from each square meter of its surface? ____________________
Fill in the blank(s) with correct word
A small gas laser of the type used in classrooms may radiate light at a power level of 2.0 mW. If the wavelength of the emitted light is 642. nm, how many photons are emitted per second?
What will be an ideal response?