A peregrine falcon dives at a pigeon. The falcon starts with zero downward velocity and falls with the acceleration of gravity. If the pigeon is 76.0 m below the initial height of the falcon, how long does it take the falcon to intercept the pigeon?
3.94 s
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The principle of Occam's Razor states that
A) scientific explanations may invoke supernatural causes if no other causes are found. B) only a model that has survived repeated observational tests deserves to be called a scientific theory. C) no scientific theory, no matter how well tested, can ever be proved absolutely true. D) in explaining natural phenomena, the simplest explanation consistent with the observations is to be preferred. E) while personal biases may influence individual scientists, the process of science itself can uncover these biases.
The buoyant force occurs because the pressure in a fluid increases with depth
Indicate whether the statement is true or false
Is the scientific method a hypothesis? How do you know?
What will be an ideal response?
An object moves at a constant velocity of 12 m/s to the southwest for an interval of 30 s. Halfway through this interval, what is the magnitude of its instantaneous velocity?
a. It can be any value from 0 to 24 m/s. b. 12 m/s c. 6 m/s d. More information is needed. e. 24 m/s