Flux is a measure of the light energy from a star that hits a collecting area of one square meter in one second
a. True
b. False
Indicate whether the statement is true or false
True
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The phase of the Moon at the time of solar eclipse is
What will be an ideal response?
The buoyant force on an object is:
a. the same for all floating objects. b. equal to a constant that depends on the fluid times the weight of fluid that the object displaces. c. inversely proportional to the weight of fluid displaced by the floating object. d. equal to the weight of fluid that the object displaces. e. a fictitious force.
Getting a cold is like building the chemical elements in nucleosynthesis
a. True b. False Indicate whether the statement is true or false
Diffraction Gratings: What is the angular separation of two spectral lines of wavelengths 497 nm and 251 nm formed in the third order with a diffracting grating having 587 lines per millimeter?
A. 34.8° B. 24.8° C. 41.3° D. 29.4° E. 4.21°