A charged particle (mass = 4.0 ?g, charge = 5.0 ?C) moves in a region where the only force on it is magnetic. What is the magnitude of the acceleration of the particle at a point where the speed of the particle is 5.0 km/s, the magnitude of the magnetic field is 8.0 mT, and the angle between the direction of the magnetic field and the velocity of the particle is 60°?

a. 39 km/s2
b. 43 km/s2
c. 48 km/s2
d. 52 km/s2
e. 25 km/s2


b

Physics & Space Science

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A dinosaur like a Brontosaurus with a small head and a large body would be expected to have an Encephalization Quotient (EQ) of

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Which of these did Rutherford's "solar system" model of the atom successfully explain?

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