Toronto, Canada and Santiago, Chile have similar longitudes but very different latitudes. Which of the following is true about how observers in those cities will view the constellation Orion, which is located approximately on the celestial equator?
A) Orion will cross the meridian at about the same local time in both cities, but at different altitude and direction.
B) Orion will cross the meridian at the same altitude and direction in both cities, but at different local times.
C) Orion will cross the meridian at the same altitude and direction and at about the same local time in both cities.
D) If Orion is visible in the night sky in one city, then the other city will need to wait a few months to see Orion in its night sky.
A) Orion will cross the meridian at about the same local time in both cities, but at different altitude and direction.
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A 2.0-kg object moving 5.0 m/s collides with and sticks to an 8.0-kg object initially at rest. Determine the kinetic energy lost by the system as a result of this collision
a. 20 J b. 15 J c. 30 J d. 25 J e. 5.0 J
The louvered box that serves as a thermometer shelter at a weather station is known as which of the following?
What will be an ideal response?
If an apple falls a distance of 2 meters in its first second of fall, then 2 meters in its next second of fall, and again 2 meters during its third second of fall, the acceleration of the apple is
1) 0 m/s2. 2) 2 m/s2. 3) 4 m/s2. 4) 10 m/s2. 5) actually, more than 10 m/s2. This is because 6) no change in velocity occurs during fall. 7) the apple increases in distance by 2 meters for each successive second. 8) the average velocity is 1 m/s for each successive second. 9) its weight is counterbalanced by its inertia.
An alternative statement of the uncertainly principle tells us that we cannot know precisely both
A) a particle's energy and the time during which it has this energy. B) a particle's mass and energy. C) whether a particle is a wave or whether it is truly a particle. D) a particle's momentum and its energy.