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1) An atom of an element with an atomic number of 95 and a mass number of 241 undergoes decay by emission of an alpha particle. What are the atomic number, mass number and name of the product atom?
2) An atom of 63Ni undergoes loss of a beta particle. What are the atomic number, mass number and name of the product atom?
Suppose Fuzzy, a quantum-mechanical duck, lives in a world in which h = 2?J · s. What is the minimum uncertainty in the duck's speed
A sonar signal of frequency 1.00 x 106 Hz has a wavelength of 1.50 mm in water. What is its period in air? What is its period in water? What is the speed of the signal in water?
What happens to support force on the workmens feet
determine average net force exerted in the barrel of cannon.
A thin soap film (n = 1.302) suspended in air has a uniform thickness. When white light strikes the film at normal incidence, violet light (&lambdav = 412 nm) is constructively reflected. At what angle of incidence will green light (&lambdag = 562..
A man pushes a 2.0 kg broom at constant speed across thefloor. The broom handle makes a 50 degree angle with thefloor. He pushes the broom with a 5.0 N force. Find the accleration of the broom
A source produces sound waves of time period .001 second and wave length of 20 cm. find the time taken by sound waves to travel a distance of 800 metres.
In a skating stunt known as crack-the-whip, a number of skaters hold hands and form a straight line. obtain the magnitude of the centripetal force
A certain wire has a resistance of 140 Ω. What is the resistance of a second wire, made of the same material, that is 1/3 as long and has 1/5 the diameter? (answer in ohms)
A sled is being pulled along a horizontal surface by a horizontal force of magnitude 600 N. Find the instantaneous power created by force
Beginning with expressions for the reactance of a capacitor and an inductor, derive an expression for the resonant frequency
If the electric charge did not exist and electrons were bound to protons by the gravitational force to form hydrogen, derive the corresponding expressions for ao and En and compute the energy and frequency of the light emitted in the n=2 to n=1 tr..
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