In our vicinity, the galactic disk is about 100 times wider than it is thick
Indicate whether the statement is true or false
TRUE
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An incompressible fluid flows steadily through a pipe that has a change in diameter. The fluid speed at a location where the pipe diameter is 8.0 cm is 1.28 m/s. What is the fluid speed at a location where the diameter has narrowed to 4
0 cm? A) 0.32 m/s B) 0.64 m/s C) 1.28 m/s D) 2.56 m/s E) 5.12 m/s
A spherical shell of inner diameter R and outer diameter 3R has a uniform density ?. What is the magnitude of the gravitational acceleration a distance 2R from the center of the spherical shell?
A) 15?G?R/7 B) 32?G?R/5 C) 25?G?R/12 D) 7?G?R/6 E) 7?G?R/3
The figure shows the position of an object as a function of time, with all numbers accurate to two significant figures. Between time and time (a) what is the average speed of the object? (b) what is the average velocity of the object?
What will be an ideal response?
Four amperes of current exist in the primary coil of a transformer. The voltage across the primary coil is 120 V. What is the power output of the secondary coil?
A) 30 W B) 120 W C) 480 W D) 960 W E) need more information