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Q1. A spring stiffness 900 N/m and relaxed length 1m stands vertically on a table. You hold a block of mass 1 kg barely touching the top of the spring. Assume you let the mass down onto the spring certain distance very slowly and view the mass is not moving at this point. How much did the spring compress?
Q2. Consider a system of three non interacting identical bosons that moves in a common external one-demention harmonic oscillator potential. Find out the energy level and wave functions of the ground state, the first state, and the second state of the system.
The coil is flipped so its plane is vertical to the magnetic field in 0.050 s. What is the magnitude of the average induced emf.
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What is an electric potential at a point
An 82 kg parachutist descends through a vertical height of 350 m with constant speed. Find out the increase in entropy produced by the parachutist; assume the air temperature is 21 degrees C.
The distance between deer B and C is 92 m. What is distance between deer A and C.
What mass of stone is necessary if the temperature is not to drop below 18.5°C overnight. Sunlight shining in during the daytime is absorbed by the floor, interior walls, and objects in the room, raising their temperature to 37.5°C.
Two meteoroids are heading for earth. Their speed as they cross the moon's orbit is 2.3 km/s. The second meteoroid misses for earth by 2680 km. What is its speed at its closest point.
While a force of 6.0 N is applied, pulling the spring to the right, the elongation of the spring is 0.030m from its equilibrium position. What is the force constant of the spring
What distance does baseball move before its release
What is the magnitude of the runner's total displacement . What is the phase difference between the two waves next they reach the observer.
Find out the direction of the train motion
What is momentum of the system immediately after the pack is thrown?
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