The type of EM waves used in radar is __________
Fill in the blank(s) with correct word
microwave
Physics & Space Science
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A battery in a large flashlight produces a current of 2 amperes in a light bulb that has a resistance of 3 ohms. What is the voltage of the battery?
Physics & Space Science
The most common stars are _______________ stars
Fill in the blank(s) with correct word
Physics & Space Science
One section of a pipe carrying water has a cross-sectional area of 16 cm2; in this section the water has flow velocity of 1.0 m/s. Another section of this pipe has a constricted cross-sectional area of 4 cm2. If the flow is steady, what is the water velocity in the constricted section?
A. 4.0 m/s B. 0.50 m/s C. 1.0 m/s D. 2.0 m/s E. 0.25 m/s
Physics & Space Science
Which of the following sound frequencies lie(s) in the audible range?
a. 26 Hz b. 27 kHz c. 1 MHz d. All of these
Physics & Space Science