Consider a hydrogen atom and a singly-ionized helium atom. Which atom has the lower ground state energy?
1.hydrogen
2.helium
3.The ground state energy is the same for both.
2
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A(n) ____ is a commonly accepted set of scientific ideas and assumptions
a. theory b. paradigm c. hypothesis d. natural law e. model
1062/1060 = 100. What is ln 1062/ln 1060?
A. 100 B. 10 C. 4.6 D. 1.0
A crying baby emits sound with an intensity of 8.0 × 10-8 W/m2. Calculate a reasonable estimate for the intensity level from a set of quintuplets (five babies), all crying simultaneously at the same place?
The lowest detectable intensity is 1.0 × 10-12 W/m2. A) 79 dB B) 69 dB C) 56 dB D) 49 dB E) 36 dB
An ideal solenoid 20 cm long is wound with 5000 turns of very thin wire. What strength magnetic field is produced at the center of the solenoid when a current of 10 A flows through it? (?0 = 4? × 10-7 T ? m/A)
A) 4.8 T B) 0.0063 T C) 3.2 T D) 0.31 T E) 0.20 T