For normal vision, an object can be seen clearly when it is beyond the
a. far point.
b. nearsighted point.
c. farsighted point.
d. near point.
d
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Marie & Pierre Curie
A) discovered radioactivity. B) proposed the plum-pudding model. C) proposed the tiny central nucleus idea. D) observed back-scattering from nuclei. E) discovered radium and polonium.
The point directly over your head is called ________
A) the north celestial pole B) the North Star C) the meridian D) the zenith
Suppose you stand on a weighing scale and all of a sudden the atmosphere vanishes. The reading on the scale would
A) increase. B) decrease. C) remain the same.
You hold a tennis racket in your hand. On top of the racket you have balanced a ball. Which statement is true?
a. The force of your hand on the racket and the force of the ball on the racket are equal and opposite. b. The force of the racket on your hand and the force of the ball on the racket are equal and opposite. c. The force of your hand on the racket and the force of the racket on the ball are equal and opposite. d. The force of the racket on your hand and the force of the racket on the ball are equal and opposite. e. The force of your hand on the racket and the force of the racket on your hand are equal and opposite.