A charged particle moving in the magnetic field created by an external magnet experiences a force that is perpendicular to both the particle’s velocity 
and the direction of the magnetic field 
in the sense indicated by your right thumb if your right index finger points in the direction of and your adjacent finger points in
the direction of . (The magnetic field , in turn, points away from the external magnet’s north pole and toward its south pole.) A certain radioactive substance emits quantons that, when placed in a magnetic field directed away from the observer, bend to the right side of their direction of travel. These nuclei are decaying via which kind of process?
A. An alpha decay process
B. A beta decay process
C. A gamma decay process
D. There is not enough information to specify.
B. A beta decay process
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A constant force is applied to a body that is already moving. The force is directed at an angle of 60 degrees to the direction of the body's velocity. What is most likely to happen is that
a. the body will stop moving. b. the body will move in the direction of the force. c. the body's velocity will increase in magnitude but not change direction. d. the body will gradually change direction more and more toward that of the force while speeding up. e. the body will first stop moving and then move in the direction of the force.
Two vertical tubes of equal cross-sectional areas are filled with liquids to heights producing atmospheric pressure at their bottoms. One liquid is water and the other is mercury. Both liquids have equal
A) volumes. B) densities. C) weights. D) viscosity. E) none of the above
The solar wind blew light, gaseous elements out of the inner Solar System.
a. true b. false
The vertical displacement y(x,t) of a string stretched along the horizontal x-axis is given by y(x,t) = (6.00 mm) cos[(3.25 m-1)x - (7.22 rad/s)t]
(a) What is the minimum time for each complete cycle of the wave? (b) What is the distance between adjacent crests of the wave? (c) How fast does this wave travel?