A person looking through eyeglasses sees real images
a. True
b. False
Indicate whether the statement is true or false
False
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Addition by 1. Components: Vector 
has a magnitude of 8.0 m and points 30° north of east; vector 
has a magnitude of 6.0 m and points 30° west of north; and vector 
has a magnitude of 5.0 m and points 30° west of south. The resultant vector 
+ 
-5.0px;" /> + 
is given by
A. 2.7 m at an angle 74° north of east.
B. 5.9 m at an angle 74° north of east.
C. 4.8 m at an angle 74° east of north.
D. 5.1 m at an angle 74° north of east.
E. 2.1 m at an angle 66° east of north.
Shell Radius: If a hydrogen atom originally in a state with principal quantum number n is excited to state n' = 2n, then
A. its radius and binding energy will double. B. its radius will quadruple and the binding energy will double. C. its radius will double and the binding energy will quadruple. D. its radius will quadruple and the binding energy will be reduced by a factor of four. E. its radius and binding energy will quadruple.
The constant K in Kepler's Third Law is the same for all the planets in our solar system, but is different for planetary systems orbiting other stars
Indicate whether the statement is true or false
What is the focal length of a pair of contact lenses that will allow a person with a near point of 125.0 cm to read a newspaper held 25.0 cm from his eyes?
A) -100 cm B) -31.3 cm C) 10.2 cm D) 20.8 cm E) 31.3 cm