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On the basis of the Bohr model consider the doubly ionized Li atom:
If an electron in this atom makes a transition from n=2 to the ground state, discover the energy, momentum and wavelength of the emitted photon.
The isotope 15N undergoes radioactive decay to form 15C. What charged particle is emitted in the decay process? how much kinetic energy in MeV is given to the particle
The United States uses 1.12×1019J of electrical energy per year. How many kilograms of uranium would have to be mined per year to provide that much 235U
A force of 1250N is needed to move a crateweighing 3270N up a ramp that is 4.55m long. if the elevated end ofthe ramo is 0.750m high, what is the efficiency of theramp?
A 0.20 kg mass resting on a frictionless surface is attached to a solid wall by means of a spring with and elastic force constant k of 5.0 N/m. calculate the maximum velocity experienced by the mass
A scuba diver is 40 m below the surface of a lake, where thetemperature is 5 degrees C. He releases an air bubble with avolume of 15 cm^3. What is the volume of the bubbleright
Radio waves of wavelength 250 m from a star reach a radio telescope by two separate paths. Find what is the height of the cliff
If the elastic limit of steel is 5.0 multiplied by 108 Pa, determine the minimum diameter a steel wire can have
A 1.50- ?C charge is placed at the center of a cube of sides 3.10 cm. Determine the electric flux through each of the sides
A tree is growing at the edge of a pond. The top of the treeis seen reflected 75m from the base of the tree and 15m from thefeet of an observer whose eyes are 1.8m above thepond/mirror. How tall is the tree?
In a certain solar house, energy from the Sun is stored in barrels filled with water. In a particular winter stretch of five cloudy days, 1.37 x 106 kcal is needed to maintain the inside of the house at 22.4oC. what volume of water is required
A 545-turn circular-loop coil with a diameter of 18.8 cm is initially aligned so that its plane is perpendicular to the Earth's magnetic field, What is the value of the Earth's magnetic field
A man pushes a 2.0 kg broom at constant speed across the floor. The broom handle makes a 50 degree angle with the floor. What is the value of the frictional force opposing the motion
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