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(i) A radioactive sample produces 46035 decays per minute at one point in an experiment and 308.09 days later produces 837 decays per minute. Find what is the half time?
(ii) Determine what is the decay constant?
(iii) Determine the mean lifetime of the material?
A transformer with 1760 turns on the primary and 347 turns on the secondary is used in an electric slot car racing set to reduce the input voltage amplitude of 170 V from the wall output. What is the current amplitude in the primary coil
A small plane tows a glider at constant speed and altitude. If the plane does 2.09 105 J of work to tow the glider 130m, what is the angle between the two rope and the horizontal
A 0.20 kg stone attached to a 0.8 m long string is rotated in a horizontal plane. Determine the speed of the stone
A box with a total surface area of 1.01 m2 and a wall thickness of 4.81 cm is made of an insulating material. Find the thermal conductivity of the insulating material
The output voltage of an AC generator is given by ?v = (200 V) sin (70?t). The generator is connected across a 19.0-? resistor. Find the power delivered to the resistor
The depth of the Pacific Ocean in the Mariana Trench is 36,198 feet. Compute what is the gauge pressure at this depth
A basketball player makes a jump shot. The 0.607 kg ball is released at a height of 1.97 m above the floor with a speed of 7.22 m/s, What is the work done on the ball by air resistance
A parallel-plate air-filled capacitor having area 41.0 cm2 and plate spacing 2.70 mm is charged to a potential difference of 360. V. calculate the energy density between the plates
An ice machine converts 10 degree celsius water to 0 degree celsius ice. The ice machine has a COP of 3 and consumes elec
A 23.0 g block of copper whose temperature is 447 K is placed in an insulating box with a 92.4 g block of lead whose temperature is 132 K. find the equilibrium temperature of the two-block system
In the two-slit experiment, the distance between the slits and the screen is 1.1 m and the distance between the slits is 0.040 mm. what is the distance between the adjacent bright fringes
Express your reply in terms of the cylinder's radius r and the magnitude of the acceleration because of gravity g.
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