A simple pendulum has a period of 1.0 s. What is the pendulum length? (g = 9.8 m/s2)
a. 0.25 m
c. 0.99 m
b. 0.39 m
d. 1.0 m
A
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A particle (mass = 6.7 × 10^-27 kg, charge = 3.2 × 10^-19 C) moves along the positive x axis with a speed of 4.8 × 10^5 m/s. It enters a region of uniform electric field parallel to its motion and comes to rest after moving 2.0 m into the field. What is the magnitude of the electric field?
a. 2.0 kN/C b. 1.5 kN/C c. 1.2 kN/C d. 3.5 kN/C e. 2.4 kN/C
Induced electric and magnetic fields result in
A) electromagnetic waves. B) stronger electric or magnetic fields. C) higher voltages produced by Faraday induction. D) all of the above E) none of the above
Aside from Earth, Venus is the most likely place for life to exist in the Solar System
a. True b. False Indicate whether the statement is true or false
The planet Neptune was discovered by perturbations of
A) Uranus. B) its moons. C) Pluto. D) none of the above