Suppose you know the frequency of a photon and the speed of light. What else can you determine about the photon?
A) its wavelength and energy
B) its temperature
C) its acceleration
D) the chemical composition of the object that emitted it
A) its wavelength and energy
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Which type of asteroid is classified to be dark as coal and probably carbonaceous?
a. C-type b. F-type c. M-type d. S-type e. V-type
A ferromagnetic material loses this property above the ______________ temperature
Fill in the blank(s) with correct word
The objective lens and the eyepiece of a microscope have focal lengths of 4.0 mm and 25 mm, respectively
The objective produces a real image 30 times the size of the object, with the final image viewed at infinity. The near point of the microscope user is at 25 cm. What is the magnitude of the overall magnification of the microscope? A) 250 B) 300 C) 350 D) 400 E) 450
Calorimetry: A lab assistant pours 330 g of water at 45°C into an 855-g aluminum container that is at an initial temperature of 10°C. The specific heat of aluminum is 900 J/kg ? K, and that of water is 4186 J/kg ? K. What is the final temperature of the system, assuming no heat is exchanged with the surroundings?
A. 28°C B. 32°C C. 31°C D. 33°C E. 35°C