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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How does distance between particles and particle motion change as a solid substance becomes a gas?
What will be an ideal response?
Balance the chemical equation: Al2S3+ H2O ? Al(OH)3 + H2S
One way to heat a gas is to compress it. A gas at 1.00 atm at 25.0°C is compressed to one tenth of its original volume, and it reaches 30.0 atm pressure. What is its new temperature?
a. 1500 K c. 1192°C b. 621°C d. 919°C
Which of the following statements is not an assumption used in models of galaxy formation?
A) The very early universe had an almost perfectly uniform distribution of hydrogen and helium gas. B) Some regions in the universe were slightly more dense than others. C) The universe is expanding. D) Gas contracted to form the disks of galaxies before any stars were born.