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As observed on earth, a certain type of bacteria is known to double in number every 22.9 hours. Two cultures of these bacteria are prepared, each consisting initially of one bacterium. One culture is left on earth and the other placed on a rocket that travels at a speed of 0.732c relative to the earth. At a time when the earthbound culture has grown to 256 bacteria, how many bacteria are in the culture on the rocket, according to an earth-based observer?
A single circular loop of wire is placed inside a long solenoid with its plane perpendicular to the axis of the solenoid. What is the induced emf in the small loop
A crate with a mass of 171.5 kg is suspended from the end of a uniform boom with a mass of 80.3 kg. The upper end of the boom is supported by a cable attached to the wall and the lower end by a pivot (marked X) on the same wall. compute the tensio..
A 3.4 kg bucket of water is raised from a well by a rope. If the upward acceleration of the bucket is 2.2 m/s2, find the force exerted by the rope on the bucket
A young boy swings a yo-yo horizontally above his head at an angular acceleration of 0.32 rad/s^2. If the tangential acceleration of the yo-yo at the end of the string is 0.15 m/s^2, how long is string.
A thin metallic spherical shell of radius 41.6 cm has a total charge of 8.05 ?C uniformly distributed on it. At the center of the shell is placed a point charge of 2.83 C. What is the electric field at a distance of 23.9 cm from the center of the ..
Oil is being loaded into a barge through a 150 mm diameter pipe whose exit is at an angle ? = 60? to the horizontal. Determine the force exerted by the barge on the rope
A disk of radius has a total charge uniformly distributed over its surface. The disk has negligible thickness and lies in the xy plane. What is the electric potential V (z) on z axis as a function of z, for z>0.
According to the universal law of gravitation the gravitational force on a small mass at the surface of the Earth is proportional to the product of the mass and the mass of the Earth and inversely proportional to the square of the distance between..
A block just begins to slide down a ramp after being elevated to an angle of 40 degrees. What is the coefficient of static friction
An insulated Thermos contains 138cm3 of hot coffee at 95 °C. You put a 12g ice cube at its melting point to cool the coffee. By how numerous degrees has your coffee cooled once the ice has melted and equilibrium is reached.
A capacitor is charged to a potential of 12.0 and is then connected to a voltmeter having an internal resistance of 3.10. estimate the time constant of the circuit
Mass of electron = 9.11 x 10-31 kg, h = 6.626 x 10-34 J.s, c = 3 x 108 m/s; 1 eV = 1.6 x 10-19 J, Mass of a proton or neutron = 1836 x mass of electron, Mass of aluminum atom = 26.9 amu, 1amu = 1.66 x10-27 kg.
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