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A pellet gun is fired straight downward from the edge of a cliff that is above the ground. The pellet strikes the ground with a speed of . Barrett .50 Caliber is fired with the speed of 2700 feet per second. How far above ground does the Barrett .50 Caliber need to be to strike the ground at the same time as the pellet gun? A dynamite blast at a quarry launches a chunk of rock straight upward, and later it is rising at a speed of . Assuming air resistance has no effect on the rock, how long does it take for the rock to reach the ground?
questiona violet and a red beam of light with wavelengths of 400nm and 700nm respectivelynbspat the same time strike an
question a line in the x-ray spectrum of gold has a wavelength of 18.5 pm18.5x10-12 m the emitted x-ray photons
question1a war-wolf or trebuchet was a device used throughout the middle ages to throw rocks at castles and now
A beam of ultraviolet radiation, with frequency of2.78x1015 Hz is directed on a clean metalsurface. Calculate the maximum kinetic energy for an electron
This problem is in a beaker. The large container shown in the picture above is filled with a liquid of density 1.1E3 kg/m3. A small hole of area A=2.5E-6 m2 is open in the side of the container a distance h below the liquid surface, which allows a..
What is an expression for , the position of mass I as a function of time? imagine that position is measured in meters and time is measured in seconds.
A railroad car with a mass of 11600 kg collides and couples with a second car of mass 18600 kg that is initially at rest. what is the final velocity of the two railroad cars after they couple
Consider a model thermodynamic system in which the allowed (nondegenerate) energy levels are 0, ? (epsilon), 2? (epsilon), 3? (epsilon). Determine how many macrostates are possible
A metal slug is dropped from a height of 1/20 RM above the moon's surface. Find the speed with which the slug strikes the moon's surface
If the lumberjack now trots toward the other end of the log with a speed of 2.7 m/s relative to the log, illustrate what is the lumberjack’s speed relative to the shore?
The end of the spring is next to the 13 cm mark on the ruler. If a 2.0-kg mass is now attached to the end of the spring, elucidate where will the end of the spring line up with the ruler marks?
Two 4.9 cm× 4.9 cm metal plates are separated by a 0.19-mm-thick piece of Teflon. What is the maximum potential difference between the disks
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