List the fundamental forces in nature
What will be an ideal response?
gravitational force, electromagnetic force, strong nuclear force, weak nuclear force
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AC Generator: A circular coil with 600 turns has a radius of 15 cm. The coil is rotating about an axis perpendicular to a magnetic field of 0.020 T. If the maximum induced emf in the coil is 1.6 V, at what angular frequency is the coil rotating?
A. 0.30 rad/s B. 0.60 rad/s C. 0.90 rad/s D. 1.4 rad/sec E. 1.9 rad/s
When an object is placed 118 cm from a thin concave lens, its image is found to be 59 cm from the lens. The lens is removed, and replaced by a thin convex lens whose focal length has the same magnitude as the diverging lens
This second lens is at the original position of the first lens. Where is the image of the object now?
Diatomic molecules such as 
and 
undergo simple harmonic motion with frequencies that obey Hooke’s Law with the effective mass being half the atomic mass. If the mass of a hydrogen atom is 1.67 
kg and the observed frequency of oscillation is 
what is the effective spring constant associated with the bond between the hydrogen atoms?
A. 515 N/m B. 164N/m C. 82N/m D. 13N/m E. 1030 N/m
Terminal Voltage and Internal Resistance: A 7.0-? resistor is connected across the terminals of a battery having an internal emf of 10 V. If 0.50-A current flows, what is the internal resistance of the battery?
A. 13 ? B. 20 ? C. 10.8 ? D. 27.0 ?