Identical particles are placed at the 50-cm and 80-cm marks on a meter stick of negligible mass. This rigid body is then mounted so as to rotate freely about a pivot at the 0-cm mark on the meter stick. If this body is released from rest in a horizontal position, what is the angular speed of the meter stick as it swings through its lowest position?
a. 4.2 rad/s
b. 5.4 rad/s
c. 4.6 rad/s
d. 5.0 rad/s
e. 1.7 rad/s
b
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The process of combining signals from separate telescopes to improve resolution is called ____________________
Fill in the blank(s) with correct word
Energy Conservation With Conservative Forces: A 5.0-N projectile leaves the ground with a kinetic energy of 220 J. At the highest point in its trajectory, its kinetic energy is 120 J. To what vertical height, relative to its launch point, did it rise if there was no air resistance?
A. 44 m B. 24 m C. 20 m D. 10 m E. It is impossible to determine the height without knowing the angle of launch.
The quantum mechanical model of the hydrogen atom requires that if the orbital quantum number of the hydrogen atom is 3, there will be how many permitted orbital magnetic quantum numbers?
a. three c. four b. nine d. seven
Process of Science: Explain how technology advances help address astronomical questions
What will be an ideal response?