The uncertainty principle states that a particle cannot be precisely localized
Indicate whether the statement is true or false
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Volcanism is more likely on a planet that
A) doesn't have an atmosphere or oceans. B) has high internal temperatures. C) is closer to the Sun. D) is struck often by meteors and solar system debris.
A 50-gram sample of dry ice (solid CO2) is placed in a 4-liter container. The system is sealed and allowed to reach room temperature (20°C). By approximately how much does the pressure inside the container increase when the dry ice turns to gas? (Ignore the initial volume of the sample.)
What will be an ideal response?
The armature (or spinning portion) of a motor is accelerated uniformly from rest to a rotational velocity of 1500 rev/min in 10 seconds. The rotational acceleration of the motor is
A. 150 rad/s2. B. zero. C. 31.4 rad/s2. D. 15.7 rad/s2. E. 75 rad/s2.
Astronomers can measure a star's mass in only certain cases. Which one of the following cases might allow astronomers to measure a star's mass?
A) The star is a member of a binary star system. B) The star is of spectral type G. C) The star is of spectral type A. D) We know the star's luminosity and distance.