Strings that have more mass on a musical instrument than others produce notes of
A) higher frequency.
B) lower frequency.
C) the same frequency.
Answer: B
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Oort-cloud comets are so far from the Sun that the gravity of neighboring stars can alter their orbits
Indicate whether the statement is true or false
Which of the following represents the "Mechanical Equivalent of Heat"?
A) 1 ft-lb = 1.36 Joules B) 1 cal = 3.97 × 10-3 BTU C) 1. eV = 1.6 × 10-19 J D) 1. J = 1 kg?m2 / s2 E) 1.00 J = 0.239 cal
Satellites in low-Earth orbits are more likely to crash to Earth when the sunspot cycle is near solar maximum because ________
A) of increased magnetic interference B) it is too dangerous to send the Space Shuttle to service satellites during solar maximum C) they are more likely to have their electronics "fried" by a solar flare during solar maximum D) Earth's upper atmosphere tends to expand during solar maximum, exerting drag on satellites in low orbits
The number of electrons in a neutral atom is called its
A) principal quantum number. B) orbital quantum number. C) magnetic quantum number. D) atomic number. E) none of the above answers.