Typically, what color is the Martian sky during the daytime?
A) green
B) yellow-brown
C) red
D) blue
B
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The primary coil of a transformer has 100 turns and its secondary coil has 400 turns. If the ac current in the secondary coil is 2 A, what is the current in its primary coil?
A) 2 A B) 8 A C) 1/2 A D) 1/4 A E) 4 A
A satellite engine has an exhaust speed of 2.80 × 10^4 m/s and ejects ionized gas at a rate of 2.50 × 10^–6 kg/s. What is the instantaneous thrust of the engine?
a. 8.93 × 10^–11 N b. 7.00 × 10^–2 N c. 5.30 × 10^2 N d. 1.12 × 10^10 N
"All distant galaxies are moving away from us, and the farther away a galaxy is from us, the faster it is moving" is a statement of ______________ law
Fill in the blank(s) with correct word
Explain why the spring and neap tides occur periodically
What will be an ideal response?