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In the hydrogen atom the radius of orbit B is 16 times greater than the radius of orbit A. The total energy of the electron in orbit A is -3.40 eV. What is the total energy of the electron in orbit B?
A 2.10 kg mass attached to a spring oscillates with a period of 0.375 s and an amplitude of 20.5 cm. Find the total mechanical energy of the system
A thin layer of ice floats on the surface of water in a bucket. A ray of light from the bottom of the bucket travels upward through the water. What is this angle after the ice melts
A 15m uniform ladder weighing 500 N rests against a frictionless wall. The ladder makes 60 angles with the horizontal.
an object having a mass of 8.0 g and a charge of 10.0 x 10-5 c is placed in a uniform electric field e where ex 2.00 x
To investigate the structure of extremely small objects, such as viruses, the wavelength of the probing wave should be about one-tenth the size of the object for sharp images. If you use light of this wavelength, what would be the energy (in eV) of..
A dipole consists of charges +e and -e separated by 0.67 nm. It is in an electric field E = 2.2 × 104 N/C. What is the value of the dipole moment
An electric field of 220000 N/C points due west at a certain spot. What is the magnitude of the force that acts on a charge of -10C at the spot.
A dog with a mass of 20 kg is sitting on a board with a mass of 5 kg. The board is on ice and is free to slide without friction. What is the resultant velocity of the board
A series ac circuit contains a 230? resistor, a 18.0mH inductor, a 4.50?F capacitor, What is the power factor of this circuit
A flight attendant pulls her 63-N flight bag a distance of 277-m along a level airport floor at a constant velocity. The force she exerts is 35N at an angle of 57° above the horizontal. Determine the work completed by the force of friction on flig..
An electric field of 1.86 kV/m and a magnetic field of 0.515 T act on a moving electron to produce no net force. If the fields are perpendicular to each other, what is the electron's speed
An eyepiece of 2.6- cm focal length and an objective of 0.32- cm focal length are used in a standard microscope
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