When a metal was exposed to one photon of light at a frequency of 4.26× 1015 s–1, one electron was emitted with a kinetic energy of 5.00× 10–19 j. calculate the work function of this metal?

For general projectile motion, when the projectile is at the highest point of its trajectory, its acceleration is zero? a)the horizontal and vertical components of its velocity are zero. b) its velocity is perpendicular to the acceleration. c)the horizontal component of its velocity is zero. d)its velocity and acceleration are both zero.

Carbon 14 is a naturally occurring stable

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