The highest frequency visible light is
a. violet
b. red
c. blue
d. green
e. yellow
A
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Carnot Engine: An ideal Carnot engine operating between a warm reservoir of unknown temperature and a cold reservoir at 1.76 K has an efficiency of 40.0%. What is the temperature of the warm reservoir?
A. 2.93 K B. 0.0500 K C. 106 K D. 0.0400 K
Name each of the factors in the Drake equation
What will be an ideal response?
Pressure is measured in a 1.1 cm radius water hose at a height of 1.5 m above the floor of a house and compared to that in a hose connected to the first (of radius 2.2 cm). If the pressure in the larger radius hose is the same as that in the smaller radius hose, how far above the floor is the location for this pressure measurement?
A. 0.23 N B. 8.1 N C. 0.81 N D. 2.3 N
If a spinning star gets larger in diameter, what happens to its rotation rate?
A) It increases. B) It will not change. C) It decreases.