A proton with initial kinetic energy KE is moving in circular motion in a uniform magnetic field. When it has completed one eighth of a revolution, what is its kinetic energy?
a. 1.4KE
b. 0.71KE
c. KE
d. The value is not given.
c
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Which of the following statements is an overall summary of the findings from the Viking biology experiments?
A) the martial soil showed no signs of chemical or biological activity B) the Martian soil showed clear signs of biological activity C) the Martian soil is chemically reactive but shows no signs of biological activity D) the Martian soil contained organic molecules but showed no signs of biological activity
In free fall, the ______________ is constant
Fill in the blank(s) with correct word
What is a mineral?
What will be an ideal response?
The large space telescope that has been placed into an Earth orbit has an aperture diameter of 2.40 meters. What angular resolution will this telescope achieve for visible light of wavelength ? = 4.80 × 10?7 m?
A. 2.44 × 10?7 rads B. 2.44 × 10?4 rads C. 2.44 × 10?3 rads D. 1.22 × 10?6 rads E. 2.00 × 10?6 rads