How could you identify alpha, beta, and gamma rays coming from an ore sample?
Pass the radiation from the ore sample through a magnetic field. The alpha and beta
particles will be deflected in different directions. The magnetic field has no effect on
the gamma rays or more practically use shielding material to make the tests like you
did in Procedure 3.
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The sunspot cycle affects I. the latitude at which sunspots are visible at a given time. II. the number of sunspots that are visible at a given time. III. the rotation rate of the Sun's equator at a given time. IV. the magnetic polarity of the sunspots at a given time
a. I & II b. I & IV c. II & III d. I, II & III e. I, II, & IV
A 20.0 kg box slides down a 12.0 m long incline at an angle of 30.0 degrees with the horizontal. A force of 50.0 N is applied to the box in the upward direction. The applied force F makes an angle of 0.00 to the incline. If the incline has a coefficient of kinetic friction of 0.000, then the increase in the kinetic energy of the box is
A. 620 J. B. 576 J. C. 542 J. D. 500 J. E. 475 J.
What is the greatest mass a newborn star can have
A) 10 solar masses. B) 20 solar masses. C) 50 solar masses. D) a few hundred solar masses.
Which of the following wavelengths could NOT be present as a harmonic on a 2-m-long string?
A. 4 m B. 2 m C. 1 m D. 0.89 m E. 0.5 m