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
You might also like to view...
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
A) less than one kilogram. B) ten newtons. C) less than ten newtons. D) one kilogram.
Physics & Space Science
An area of 100 cm2 is how many square meters?
A) 1.00 B) 1.00 × 102 C) 1.00 × 10-2 D) 1.00 × 104 E) 1.00 × 10-3
Physics & Space Science
Is it possible to transfer heat from a cold reservoir to a hot reservoir?
A) No. B) Yes; this will happen naturally. C) Yes, but work will have to be done. D) Theoretically yes, but it hasn't been accomplished yet.
Physics & Space Science
Kinetic energy is definitely conserved
Indicate whether the statement is true or false
Physics & Space Science