How many atoms are in 1.00 mol of Mg?
a. 24.3
b. 6.02 × 10^23
c. 24.3 × 6.02 × 10^23
d. 24.3 × 10^23
b
Physics & Space Science
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The Moon's density, when compared to Earth's, is about
A) 10% as large. B) 25% as large. C) 50% as large. D) 60% as large. E) the same.
Physics & Space Science
EM waves in a vacuum travel at a speed
a. of c. b. varying with their wavelength. c. varying with their intensity. d. of 299,792,458 m/s.
Physics & Space Science
The main form of radiation that our bodies emit is __________
Fill in the blank(s) with correct word
Physics & Space Science
A wire of thickness d = 5 mm is tightly wound 200 times around a cylindrical core to form a solenoid. A current I = 0.1 A is sent through the wire. What is the the magnetic field on the axis of the solenoid?
A) 6.6 × 10-5 T B) 2.5 × 10-5 T C) 1.3 × 10-5 T D) 3.6 × 10-5 T E) 9.8 × 10-5 T
Physics & Space Science