What is the cosine of 55°?
A) 0.6
B) 0.57
C) 0.574
D) 0.5736
E) 0.57360
B
You might also like to view...
What are the two parts of a shadow during an eclipse?
a. total and partial b. apogee and perigee c. sidereal and synodic d. waxing and waning e. umbra and penumbra
From the following statements regarding the ratio of the molar specific heat at constant pressure to the molar specific heat at constant volume, Cp/Cv, the only correct one for an ideal monatomic gas is
A) = 1. B) > 1. C) < 1. D) Cp/Cv is sometimes more than 1, sometimes less than 1, but never equal to 1. E) Cp/Cv is sometimes more than 1, sometimes equal to 1, but never less than 1.
Heating that uses masonry at higher temperatures to warm indoors is more effective than circulating water in a system of hot water/steam radiators
What will be an ideal response?
Suppose that Earth's ice caps melted, but everything else about the Earth's surface and atmosphere stayed the same. What would happen to Earth's average surface temperature?
A) The temperature would not be affected at all. B) The surface temperature would decrease. C) The surface temperature would increase. D) The surface temperature would change radically, until it was equal to the melting temperature of ice.