A proton has a total energy of 2.5 × 10^?10 J. How fast is it moving? (M = 1.67 × 10^?27 kg)
a. 0.90 c
b. 0.80 c
c. 0.70 c
d. 0.60 c
e. 0.40 c
b
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Viewed from afar, the transit of Earth would cause the Sun's brightness to dim by approximately
A) 10%. B) 5%. C) 1%. D) 0.00001%. E) 0.01%.
A constant net force acts on an object. Describe the motion of the object
A) constant non-zero velocity. B) constant non-zero acceleration. C) increasing acceleration. D) decreasing acceleration. E) zero acceleration.
Gravity acts over a limited distance range
Indicate whether the statement is true or false
Which of the patterns shown below would appear on a screen when monochromatic light first passes through a narrow slit for which a = ? and then strikes the screen? Note that the darkest area in each illustration represents the brightest area on the screen.
A.
B.
C.
D.
E.
