Describe one major accomplishment for each of the following people: Copernicus, Tycho Brahe, Kepler, and Galileo
What will be an ideal response?
Many possible answers, e.g., Copernicus: Sun-centered system; Tycho Brahe: collected key data for Kepler's discoveries; Kepler: laws of planetary motion; Galileo: overturning Aristotelian physics.
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A solid cylindrical bar conducts thermal energy at a rate of 25 W from a hot to a cold reservoir under steady state conditions
If both the length and the diameter of this bar are doubled, the rate at which it will conduct thermal energy between these reservoirs will be A) 200 W B) 100 W C) 50 W D) 25 W E) 12.5 W
Earth is nearly twice as large as Venus
Indicate whether the statement is true or false
The type of energy that a swinging pendulum has at the low point of its swing is
A) elastic. B) kinetic. C) gravitational. D) thermal. E) sexual.
The type of EM radiation that has wavelength just a bit longer than that of visible light is
a. ultraviolet b. infrared c. x ray d. microwave e. gamma ray