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Good science is problem drive and not methodology driven in the sense that it employs those methods that for a given problem, best help answers the researchers' question at hand. Discuss this concept relative to case-study design.
A pion has a rest energy of 135MeV. It decays into two gamma rays, bursts of electromagnetic radiation that travel at the speed of light. find the energies of the two gamma rays
Calculate the mass of Earth from the period of the moon, T = 27.3 d; its mean orbital radius, rm = 3.84 108 m; and the known value of G
a 1.50 kg snowball is fired from a cliff 12.5 m high. the snowballs velocity is 14.0 ms directed 41.0 degrees above the
A restaurant manager has decorated his retro diner by hanging (scratched) vinyl LP records from thin wires. The records have a mass of 179 g, a diameter of 12 in., and negligible thickness. The records oscillate as torsion pendulums. Records hung ..
A small speaker of mass 3 kg is swinging as a simple pendulum on the rope of length 0.9 m while emitting a sound of a single frequency f and power 101 W. When the pendulum is at the end of its swing: 0 radians from vertical position (the furthest awa..
Derive the electric potential V for a single current electrode placed at the surface of an isotropic medium. The current injects current I into the medium that has resistivity r. Assume that the air is non-conductive.
Find the electric field at the position of the electron. What is the potential difference in volts between the plates.
A 1200 kg car rounds a corner of radius r = 45m. If the coefficient of static friction between the tires, what is the greatest speed the car can have in the corner without skidding
What is the electric potential at C
A uniform spherical shell of mass 8.60kg with diameter 48 cm has four small masses of mass 2.00kg attached to its outer surface and equally spaced around it. This combination is spinning about an axis running through the center of the sphere and t..
An electron with unknown kinetic energy is brought to rest as it falls during a potential 120 V. What was its initial kinetic energy? (In joules)
Suppose you are performing the down hill run of the experiment you did this week, what is the energy ratio(Ef/Ei) of a system on Ganymede that hasa final velocity of 996.9 cm/s, initial velocity of 8.8 m/s, and aheight of 0.0748 km.
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