in the jet’s direction of motion, which part of the airplane becomes negatively charged?
A. Its nose
B. Its tail
C. Its top
D. Its bottom
E. Its left wing
F. Its right wing
T. (No part becomes charged.)
T. (No part becomes charged.)
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How large a force is necessary to stretch a 2.0-mm diameter copper wire (Y = 11 × 1010 N/m2) by 1.0%?
A. 2.1 kN B. 3.5 kN C. 6.9 kN D. 11 kN E. 5.4 kN
A mass m = 2.0 kg is attached to a spring having a force constant k = 290 N/m as in the figure. The mass is displaced from its equilibrium position and released. Its frequency of oscillation (in Hz) is approximately
?
?
A. 12. B. 0.50. C. 0.010. D. 1.9. E. 0.080.
A chunk of metal has a mass of 1 kg on Earth. If the same chunk were on the Moon its mass would be
A) less. B) the same. C) more.
Accuracy refers to the repeatability of a measurement using a given instrument
Indicate whether the statement is true or false