A(n) ____ is a single conjecture that can be tested
a. hypothesis
b. paradigm
c. natural law
d. model
e. theory
a
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What is erupting out of the geysers on Triton?
A) liquid water with basalt B) liquid methane with a dark hydrocarbon slush C) liquid nitrogen with carbon grit D) liquid carbon dioxide with graphite E) liquid hydrogen with dark helium ash
COBE found the cosmic microwave background to be absolutely uniform everywhere
Indicate whether the statement is true or false
Two cars are traveling at the same speed and hit the brakes at the same time. Car A decelerates (decreases its velocity) at twice the rate of car B. If car B takes time T to stop, how long does it take car A to stop?
A) 4T B) 2T C) T D) T /2 E) T/4
The nuclear reactions in a star's core remain under control so long as
a. luminosity depends on mass. b. pressure depends on temperature. c. density depends on mass. d. weight depends on temperature. e. temperature depends on mass.