Doubling both charges changes the potential energy for a pair of point charges by a factor of
A. 2.
B. 4.
C. 1?2.
D. 1?4.
E. 1 (no change).
B. 4.
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Determine the number of significant figures in 100.01 x 103 meters
What will be an ideal response?
Constant Acceleration Kinematics: A car is traveling with a constant speed of 30.0 m/s when the driver suddenly applies the brakes, causing the car to slow down with a constant acceleration. The car comes to a stop in a distance of 120 m. What was the acceleration of the car as it slowed down?
A. 3.75 m/s2 B. 4.00 m/s2 C. 4.25 m/s2 D. 4.50 m/s2 E. 4.75 m/s2
The flow of energy through each shell determines:
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Physical Pendulum: A thin hoop is supported in a vertical plane by a nail. What should the radius of the hoop be in order for it to have a period of oscillation of 1.00 s? The moment of inertia of a hoop of mass M and radius R about a point on its rim is 2MR2.
A. 0.0154 m B. 0.0621 m C. 0.124 m D. 0.1876 m E. 0.248 m