Why was the summer of 2003 a fine time for Mars observers?
A) The Mars Rovers returned live images from the surface.
B) The skies were unusually clear and calm.
C) Mars' north pole was tilted to face the Earth head-on.
D) Mars was closer to us than it has been in over 50,000 years.
E) Mars was even brighter than Venus for several weeks.
D
You might also like to view...
Rotational Kinetic Energy: A solid ball of mass 1.0 kg and radius 10 cm rolls with a forward speed of 10 m/s when it comes to a hill. There is enough friction on the hill to keep the ball from slipping as it rolls up.(a) How high vertically up the hill can the ball roll before coming to rest?(b) How high vertically could the ball go if the hill were totally frictionless?(c) How is it that the ball can go higher with friction than without friction?
What will be an ideal response?
A high power line carries a current of 1.0 kA. What is the strength of the magnetic field this line produces at the ground, 10 m away? (?0 = 4? × 10-7 T ? m/
A) A) 4.7 µT B) 6.4 µT C) 20 µT D) 56 µT
Most of the light that makes the hazy band of the "milky way" visible in the night sky comes from reflection and emission nebulae
a. True b. False Indicate whether the statement is true or false
Describe at least two things that make Earth unique in the solar system?
What will be an ideal response?