Group ______________A elements have two valence electrons

Fill in the blank(s) with correct word


2

Physics & Space Science

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What will be an ideal response?

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At the highest point on the path of a projectile, its vertical acceleration

a. equals g pointing downwards. b. equals g pointing upwards. c. is zero. d. is undetermined. e. does not exist.

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A baseball outfielder throws a baseball of mass 0.15 kg at a speed of 40 m/s and initial angle of 30°. What is the kinetic energy of the baseball at the highest point of the trajectory?

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The index of refraction of diamond is 2.42. This means that a given frequency of light travels

A) 2.42 times faster in air than it does in diamond. B) 2.42 times faster in diamond than it does in air. C) 2.42 times faster in vacuum than it does in diamond. D) 2.42 times faster in diamond than it does in vacuum. E) 2.42 times faster in vacuum than it does in air.

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