Perpetual motion machines, which by definition would not require an additional energy input, cannot exist because ________
A) kinetic energy requires an input of light energy
B) energy cannot be converted from one form to another
C) in any energy conversion, some energy is lost to the surroundings as heat
D) energy cannot be created or destroyed
C
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The Gulf coast experiences a ____ tidal range and a ____ average wave size than either the Pacific or Atlantic coasts.?
A) ?smaller; smaller B) ?smaller, larger C) ?larger; smaller D) ?larger; larger
Middle-latitude cyclones typically develop along segments of the polar front
Indicate whether the statement is true or false
A decreasing number of fish have been recorded in a nearby lake. Design a research project, utilizing the scientific method, to explain this observation. List and explain every step of your research
What will be an ideal response?
When a commodity is in short supply, the cost ________
A) goes up B) remains the same C) is lower in areas with better access D) is near the cost of production E) decreases