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A hydrogen atom is initially at n =3 state.
a. How much energy is required to ionize this atom?
b. What would be the wavelength of the photon required to move it to the n = 5 state?
Two spheres are 7.66 m apart, and each has the same amount of positive charge. what is the charge on each sphere
A baseball pitcher (m = 81 kg) is initially standing at rest on an extremely slippery, icy surface. What is the recoil velocity of the pitcher
The Moon moves noticeably on the celestial sphere over the space of a single night. To show this, calculate how long it takes the Moon to move through an angle equal to its own angular diameter (0.5 degrees) against the background of the stars. Gi..
Establish the temperature at the interface
What horizontal force is needed to hold bag in new position
In a charming 19th-century hotel, an old-style elevator is connected to a counterweight by a cable that passes over a rotating disk 3.50 m in diameter. The elevator is raised and lowered by turning the disk, and the cable does not slip on the rim ..
Consider two vectors where F_1= 84 N, F_2 = 46 N, theta_1= 5 degrees, and theta_2 = 144 degrees, measured from the positive x axis with the counter-clockwise angular direction as positive. What is the magnitude of the resultant vector F = F_1 + F_..
If both ropes BCA and CD can support a maximum tensile force = 160 , what is the maximum weight of the crate that the system can support? Illustrate what is the angle required for equilibrium
A piece of wood is 0.600m long, 0.210m wide, and 0.08 m thick. Its density is 600kg/m3. find the mass of this volume of lead
A 20kg suitcase is being pulled with constant speed by a handle that is at an angle of 22degrees above the horizontal. what is the force F applied to the handle
As you sit facing your computer screen, electrons are directed from a source at the back of the computer toward you and are deflected by a magnetic field. Which direction must the magnetic field be oriented in order to direct the electrons to the ..
Oxygen gas having a volume of 1180 cm3 at 47.3°C and 1.00 x 105 Pa expands until its volume is 1900 cm3 and its pressure is 1.08 x 105Pa. determine the final temperature of the sample
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