In this photograph, the large and bright object in the sky is
A) a comet.
B) an asteroid.
C) a meteor.
D) the northern lights
A) a comet.
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To say a circuit is dc is to say that current in the circuit
A) has a single direction. B) alternates only slowly. C) is parallel to the connecting wires.
Discuss advantages and disadvantages of using a large control volume.
What will be an ideal response?
Jack, a quarterback, imparts a spin with his fingers when he throws the football during a match. The concept of _____ explains why the ball continues to spin rapidly as it flies through the air
A) kinetic energy B) angular momentum C) linear force D) specific gravity
An ideal fluid, of density 900 kg/m3, flows at 4.80 m/s through a level pipe with radius of 0.22 cm. The pressure in the fluid is 1.3 × 10^5 N/m2 . This pipe connects to a second level pipe, with radius of 0.72 cm. Find the speed of flow in the second pipe
a. 51 m/s b. 1.5 m/s c. 0.45 m/s d. 16 m/s e. 4.9 m/s