The symbol indicating the number of nucleons in a nucleus is __________
Fill in the blank(s) with correct word
A
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A battery is rated at 12 V and 160 A-h. How much energy does the battery store?
A) 1.9 kJ B) 3.2 kJ C) 6.0 kJ D) 1.9 MJ E) 6.9 MJ
This diagram represents the conveyor-like action of plate tectonics on Earth. Which numbered position represents a place where new seafloor crust is being made?
A) Position 1 B) Position 2 C) Position 3 D) Position 4
The microwave background radiation:
a. represents the leftover glow from the Big Bang. b. had its slight non-uniformity measured by COBE. c. was discovered by Penzias and Wilson. d. All of the above.
A sewing machine needle moves up and down in simple harmonic motion with an amplitude of 1.27 cm and a frequency of 2.55 Hz. What is the maximum acceleration of the needle?
A) 8.26 cm/s2 B) 16.5 cm/s2 C) 18.1 cm/s2 D) 326 cm/s2 E) 163 cm/s2