A singly charged 9Be ion is accelerated from rest through a potential difference of 8000 V. The ion is then sent into a mass spectrometer where the radius of the path is 29 cm. What is the magnetic field in the spectrometer?
A. 0.27 T
B. 0.13 T
C. 0.067 T
D. 0.0028 T
E. 0.00019 T
B. 0.13 T
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What will be an ideal response?
During a nuclear reaction, the particles involved lose 4.8 × 10-28 kg of mass. How many joules of energy are released by this reaction? (c = 3.00 × 108 m/s)
A) 4.3 × 10-11 J B) 1.4 × 10-19 J C) 1.6 × 10-36 J D) 2.1 × 10-40 J E) 5.3 × 10-45 J
According to the Schrödinger equation, the probability of finding a hydrogen atom's ground-state electron 0.053 nm from the proton is
a. zero. b. high, but not 100%. c. low, but not zero. d. 100%.
Why does the Sun look flattened near the horizon?
A. The Sun is cooler on the horizon, so it looks flattened. B. The larger refraction near the horizon lifts the lower edge of the Sun more than the upper edge and makes the Sun look flattened. C. The Sun's light is reflected off the horizon, making the Sun appear compressed. D. Earth's dense atmosphere compresses the gaseous Sun.