If the temperature of the sun is 5800 K, then what is wavelength where the blackbody radiation is a maximum?
A. 402.0 nm
B. 465.0 nm
C. 500.0 nm
D. 575.0 nm
E. 625.0 nm
C. 500.0 nm
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If Earth's axis were tilted at 30°, the daylight hours in Washington, D.C., in June would
a. remain the same. b. be greater. c. be less. d. be equal to the hours of darkness.
What is the magnitude of the gravitational force that two small 7.00-kg balls exert on each other when they are 35.0 cm apart? (G = 6.67 × 10-11 N ? m2/kg2 )
What will be an ideal response?
Tiny amounts of lithium and beryllium were formed in the big bang
a. True b. False Indicate whether the statement is true or false
Based on atomic size, which would you expect to be more soluble in water: helium, He, or nitrogen, Image?
A) Although He is smaller, its outer orbital is filled and the atom will have little attraction to the water molecules. B) Since He atoms are smaller, more of them can fit into solution, so it has a higher solubility in water. C) Nitrogen atoms are bigger and so nitrogen molecules should be more soluble in water due to greater dipole-induced dipole attractions. D) He atoms are bigger and so helium molecules should be more soluble in water due to greater dipole-induced dipole attractions.