Scientists try to form hypotheses that explain how nature works
a. True
b. False
Indicate whether the statement is true or false
True
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For a conductor in electrostatic equilibrium, which of the following statements is NOT true?
A. the electric field inside the conductor is zero B. the charge distributes itself uniformly throughout the conductor C. the electric field at the surface of the conductor is perpendicular to the surface of the conductor D. the greatest concentrations of charge on the surface are in the regions of highest curvature E. more than one of these statements about a conductor in electrostatic equilibrium is false
A 2.00 kg mass is connected to a spring with a spring constant of 6.00 N/m. The displacement is given by the expression x(t) = 12.0 cm sin
What is the maximum velocity the simple harmonic motion?
A. 34.8 cm/s B. 30.7 cm/s C. 25.6 cm/s D. 20.8 cm/s E. 17.5 cm/s
A 1200-kg car whose springs have an effective force constant of 2.66 × 106 N/m is moving along the highway with its tires out of balance. The tires have a radius of 40.6 cm. At what speed will the driver experience large vibrations?
A) 19.1 m/s B) 22.2 m/s C) 18.9 m/s D) 17.4 m/s E) 25.0 m/s
Which of these were observed from Earth, prior to spacecraft missions to Mars?
A) seasonal changes in the polar caps B) eruptions of Mount Olympus C) dust storms capable of covering the entire planet D) Both A and C are correct. E) All of the above are correct.