What kind of energy does sunlight possess?
A) kinetic
B) radiative
C) mechanical
D) potential
B
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Electric potential and electric potential energy are _
A. one and the same in most cases B. two terms for the same concept C. both of these answers D. neither of these answers
Exhibit 11-1
Two birds of prey hurtling after the same mouse collide in mid-air and grab each other with their talons. Each 250-g bird is flying at 30 m/s at a 60° angle to the ground.
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Use this exhibit to answer the following question(s).
Refer to . What is the magnitude of their total momentum, in 
Why do higher mass stars live shorter lives on the main sequence than lower mass stars?
a. Higher mass stars burn through their nuclear fuel faster. b. Lower mass stars don't get their energy from that same nuclear fusion source as higher mass stars. c. Higher mass stars have less hydrogen fuel to burn. d. Lower mass stars spend a longer time evolving to the main-sequence. e. All of the above are false.
A metal alloy, such as steel, is
a. a compound. b. a heterogeneous mixture. c. a homogeneous mixture. d. an element.