A particle of light is called
A) a quark. B) a neutron. C) a photon. D) an electron. E) a proton.
C
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At what distance from the center of the Earth would one’s weight be half that recorded on the Earth’s surface? Let the Earth's radius be R.
A. 0.4R B. 0.7R C. 0.5R D. R E. 1.4R F. 3R
A proton is accelerated from rest through a potential difference of 2.5 kV and then moves perpendicularly through a uniform 0.60-T magnetic field. What is the radius of the resulting path?
A. 15 mm B. 12 mm C. 18 mm D. 24 mm E. 8.5 mm
The oldest rocks are found
A) at convergent boundaries. B) at divergent boundaries. C) in the ocean basins. D) on continental land.
We have found Titan's surface to be perfect living condition for earthlike life
Indicate whether the statement is true or false