Which of the following describes the light that can be detected from a person?
A) The person reflects many wavelengths of visible light and emits infrared light.
B) The person emits many wavelengths of visible light and reflects infrared light.
C) The person emits a few narrow wavelengths of visible light based on the elements that make up the human body.
D) The person reflects a few narrow wavelengths of visible light based on the elements that make up the human body.
A) The person reflects many wavelengths of visible light and emits infrared light.
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What are the two most important properties of a telescope? Select exactly two responses.
A. light-collecting area B. retinal intensity C. angular resolution D. magnification
A 44.0-g block of ice at -15.0°C is dropped into a calorimeter (of negligible heat capacity) containing 100g of water at 5.0°C
When equilibrium is reached, how much of the ice will have melted? The specific heat of ice is 2090 J/kg ? K, that of water is 4186 J/kg ? K, and the latent heat of fusion of water is 33.5 × 104 J/kg. A) 5.2 g B) 4.4 g C) 21 g D) 2.1 g E) 52 g
Because sediments are not deposited continuously in a given locality over time, breaks called ______________ occur in the rock record
Fill in the blank(s) with correct word
Nothing in the universe can travel faster than ________
Fill in the blank(s) with correct word