What causes the seasons?
A. the motion of the equinoxes
B. Earth's distance from the Sun varies throughout the year.
C. The ecliptic is tilted with respect to the Celestial Equator.
D. the tilt of the celestial sphere with respect to the equator
E. None of these choices is correct.
Answer: C
You might also like to view...
A very small 51-g steel ball is released from rest and falls vertically onto a steel plate. The ball strikes the plate and is in contact with it for 0.50 ms. The ball rebounds elastically and returns to its original height
The total time interval for a round trip is 3.00 s. What is the magnitude of the average force exerted on the ball by the plate during contact with the plate? A) 3,000 N B) 1,500 N C) 2,490 N D) 2,000 N E) 3,500 N
When the measured quantity 45.67 kg is divided by the measured quantity 3.42 L, the answer should have how many significant figures?
a. Three b. One c. Four d. Two
Which of the following statements is incorrect?
a. Capacitance is always positive. b. The symbol for potential difference between the plates of a capacitor is . c. Water is a polar molecule. d. When a dielectric is placed in a capacitor it serves to reduce the electric field. e. Nonpolar molecules cannot be used for dielectric material in a capacitor.
Show that the total condensation rate per unit width down a vertical surface as given by Equation 10-41 can also be written as, Equation 10-42.
What will be an ideal response?