Most meteorites from the inner solar system originate from
A) the Moon
B) Mars
C) Mercury
D) Venus
A
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Calculate
(a) Calculate the magnetic field created by a coil made of copper wire that has 200 turns in 5 cm and carries a current of 5 A. (b) What is the magnitude of the flux density or inductance created by this coil in a vacuum?
A 500-turn circular loop 15.0 cm in diameter is initially aligned so that its axis is parallel to the Earth's magnetic field. In 2.77 ms the coil is flipped so that its axis is perpendicular to the Earth's field. If a voltage of 0.166 V is induced in the coil, what is the value of the Earth's magnetic field?
A car traveling at 100 km/h strikes an unfortunate bug that splatters on the windshield. The force of impact is greater on the
A) bug. B) car. C) same for both
Changing the positive direction in a reference frame to the opposite direction does not change the sign of which of the following quantities?
a. velocity b. average velocity c. speed d. displacement