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consider the bohr model of the one ecectron atom Be+3
1. calculate the radius,in nm,of ground state orbital
2. calculate the energy(ev) and wavelength(nm) associated with the following electronic transitions:
n=5 to n=3
n=2 to ground state.
The crates are pulled to the right at a constant acceleration 3m⁄s^2 by a horizontal force F. Calculate (a) the magnitude of the force F and (b) the tension in the rope connecting the blocks. Include the free body diagram or diagrams you used.
When the knob of a certain radio tuning capacitor is turned, the effective area of the plates in the interleaved position is reduced from 40 cm^2 to 10cm^2, What is the ratio of initial to the final capacitance
The magnetic field produced by an MRI solenoid 2.2m long and 1.5m in diameter is 2.2T. Find the magnitude of the magnetic flux through the core
A person looks horizontally at the edge of a swimming pool. If its length is 5.00m, and the pool is filled to the surface, to what depth (in m) could observer see? For water is 1.33).
What is the tangential acceleration of a bug on the rim of an 11.00 in.-diameter disk if the disk accelerates uniformly from rest to an angular speed of 79.03 rev/min in 3.60 s? One second after the bug starts from rest, what is its centripetal accel..
You took a job as a space station scientist. On a spacewalk you get separated from the station. At what speed will you move back toward the station
What is the friction force that acts on the bear?
The wheel of the car has a radius of 0.340 m. The engine of the car applies a torque of 282 N•m to this wheel, that does not slip against the road surface. Since the wheel does not slip, the road must be applying the force of static friction to the w..
Calculate the acceleration of the arrow in the bow.
A proton moving at 3.1×105m/s to the right enters a region where a uniform electric field of magnitude 53kN/C points to the left
in a science fiction movie a 100 g base ball travelling with a speed of 60m/s and an electron travelling at a speed of 1.2*10^8 m/s are approaching each other for a head on collision, what is the momentum of the base ball
my friend bob takes a leisurely stroll at a constant speed of 1.2 m/s for 8.5 mins to the south then jogs at a constant speed of 2.7m/s for 6.3 mins to the south
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