A radar pulse returns 9.0 × 10^-4 s after it was sent out and reflected by an object. What is the separation distance of the radar source and the object?
a. 2.7 × 10^5 m
b. 1.4 × 10^5 m
c. 7.4 × 10^–4 m
d. 3.7 × 10^–4 m
b
Physics & Space Science
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A certain grapefruit on Earth has a mass of one kilogram and a weight of one newton. When the grapefruit is on the moon its mass is
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Is it possible to transfer heat from a cold reservoir to a hot reservoir?
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Kinetic energy is definitely conserved
Indicate whether the statement is true or false
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