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A mortar fires a shell of mass (m) at speed (Vo). The shellexplodes at the top of its trajectory as designed. However, ratherthan creating a shower of colored flares, it breaks into just twopieces, a smaller piece of mass (1m/5) and a larger piece of mass(4m/5). Both pieces land at exactly the same time. The smallerpiece lands perilously close to the mortar (at a distance of zerofrom the mortar). The larger piece lands a distance (d) from themortar. If there had been no explosion, the shell would have landeda distance (r) from the mortar. Assume that air resistance and themass of the shell's explosive charge are negligible.
Find the distance (d) from the mortar at which the larger piece of the shell lands.
Express (d) in terms of (r)
The roof of the student dining hall at your college would be supported by high cross-braced wooden beams attached in the shape of an upside-down L. Each vertical beam is 10.0 ft high and 2.0 ft wide.
what common temperature must the two pieces be heated.
A beam of light is sent directly down onto a glass plate (n = 1.5) and a plastic plate (n = 1.2) that form a thin wedge of air (see the drawing). An observer looking down through the glass plate sees the fringe pattern shown in the lower part of the ..
A ball is thrown upward with a speed of 10m/s relative to aballoon that is 50m above the ground while it is moving downwardwith a speed of 5m/s. How long does the object take to hit the ground
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For the infinite square well problem an electron spends 40% of its time in the n=3 state and 60% of its time in the n=5 state. What is the average energy of the electron
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two charges are placed between the plates of a parallel plate capacitor. one charge is q1 and the other is q2 4.90
at a time when mining asteroids has become feasible astronauts have connected a line between their 3130-kg space tug
A 110-kg crate, starting from rest, is pulled across a floor with a constant horizontal force of 370N. What is the final speed of the crate
Electrostatic interactions with neighbors cause atoms in solids to be held in place as if bound together by tiny springs. How do you arrive at that conclusion
In a certain vacuum tube, electrons evaporate from a hot cathode at a slow, steady rate and accelerate from rest through a potential difference of 39.0 V. What is the maximum value for the beam current that will result in only one electron at a tim..
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