State the conditions for static equilibrium
What will be an ideal response?
(1 ) The net force acting on the object must be zero.
(2 ) The net torque acting on the object must be zero.
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A planet whose distance from the Sun is 3 A.U. would have an orbital period of how many Earth-years?
A) 3 B) C) D) 9 E) 81
Velocity: Arthur and Betty start walking toward each other when they are 100 m apart. Arthur has a speed of 3.0 m/s and Betty has a speed of 2.0 m/s. How long does it take for them to meet?
Fill in the blank(s) with the appropriate word(s).
An oil tanker heading due west, straight into a strong wind, reaches a speed of 5 m/s and then shuts down its engines to drift. The forward-facing flat surfaces of the tanker catch a total of 60,000 N of force from the wind. This wind force is pointing backwards, to the east. The tanker's mass is 100,000 metric tons, which is 100 million kg. If the wind blows at the same strength for 5 minutes, then how much has the wind changed the tanker's speed?
A. 0.18 m/s B. 0.018 m/s C. 1.2 m/s D. 1.08 m/s
Single-Slit Diffraction: A beam of light of wavelength 610 nm passes through a slit that is 1.90 µm wide. At what the angle away from the centerline does the second dark fringe occur?
A. 11.4° B. 9.35° C. 12.2° D. 39.9° E. 18.7°