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a) calculate the energy released by the alpha decay of 222Rn.
b) calculate the alpha radiation energy.
c) calculate the energy of recoil nucleus.
d) calculate the range of the alpha particle in water.
A car moving at 37 m/s approaches a stationary whistle that emits 270 Hz sound. The speed of sound is 347 m/s. What is the frequency of sound heard by the driver of the car.
A camera is supplied with two interchangeable lenses, whose focal lengths are 41.0 and 150.0 mm. What is the height (including sign) of her image on the image sensor
q1. an airplane is flying with a velocity of 83.0 at an angle of 25.0 above the horizontal. when the plane is a
The secondary colors, cyan, magenta, and yellow, can each be obtained by subtracting a color from white light. Which primary color is subtracted in each case
the components of an airplane's motion are described as: 193 m/s west and 151 m/s south. determine the speed of the airplane
A cell phone battery uses chemistry to create a charge separation between the terminals (anode and cathode). How many free electrons does the battery contain
A recantangular block of wood floats in a calm lake. Show, if friction is ignored, determine an equation for the force constant
Calculate the speed of the fetal heart wall at the instant this measurement is made.
express what would be the frequency of vibrations.
An air-track glider is attached to a spring. The glider is pulled to the right and released from rest att = 0. what is the amplitude of the ossilation
What is the magnitude of the resultingforce (in nano-Newtons) on the 2 nC chargeat the origin? The Coulomb constant is
A charged object has a potential of 40 V at a distance of 3 m. If the distance is increased to 42 m, then what will be the new potential
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