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The fusion of two alpha particles produces Be 8 which is a magic nucleus.Be 8 splits back to alpha particles and hence nucleosynthesis to C 12 cannot proceed. The question is how C 12 in stars is produced as collision of 3 alpha particles is a highly improbable reaction? Kindly also take into consideration the survival of a few atoms of C 12 under such intense condition of Temp and Pressure.I am asking this because intense gamma photons can disintegrate Fe 56 back to 14 alpha particles.
A light-bulb of power 40 Watts is operating with a potential difference of 120 V across it. What is the current and resistance of the filament
A 3.1-cm-diameter parallel-plate capacitor has a 2.2mmspacing. The electric field strength inside the capacitor is 1.3×105V/m. What is the potential difference across the capacitor
A simple pendulum of length of 0.350 m starts from rest at a maximum displacement of 10 degrees from the equilibrium position. When will the pendulum return to its starting position
There is a glass filled with 20cm of water and on top alayer of 30cm of oil, that exactly weights 0.700Newton. What is the total preassure at the bottom of the glass
A three-way lightbulb can produce 50W, 100W or 150W at120V. Such a bulb contains two filaments that can beconnected to the 120V individually or in parallel. What must be the resistance of each filament
A force of 2880 N is needed to bring a car moving at 20.8 m/s to a halt in 18.3 s. What is the mass of the car
A large, flat, horixontal sheet of charge has a charge per unit area of 8.5%u03BCC/m^2. Find the electric field just above the middle of the sheet
a golfer imparts a speed of 26.7 ms to a ball and it travels the maximum possible distance before landing on the green.
A46dB sound wave strikes an eardrum whose area is4.0multiplied by10-5m2. How much energy is absorbed by the eardrum per second
Io, a satellite of Jupiter, has an orbital period of 1.77 days and an orbital radius of 4.22multiplied by105km. From these data, determine the mass of Jupiter
A baseball bat has a mass of 0.82 kg and is 0.86 m long. It's held vertically and then allowed to fall. What is the bat's angular acceleration when it has reached 20° from the vertical
a solenoid of radius 2.40 cm has 430 turns and a length of 19.0 cm. a find its inductance. b find the rate at which
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