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A certain species of ionized atoms produces an emission line spectrum according to the Bohr model, but the number of protons Z in the nucleus is unknown. A group of lines in the spectrum forms a series in which the shortest wavelength is 205.1 nanometers and the longest wavelength is 468.8 nanometers. Obtain the next-to-the-longest wavelength in the series of lines.
A person, sitting on a stool rotating at a rate of 21 rpm, holds masses in each hand. When their arms are outstretched , the total rotational inertia of the system is 3.7 kg·m2. what is the new angular velocity of the system
Determine the normal mode frequency of the Lagrangian, given by L=(1/2)(xdot2 +ydot2)-(1/2)(ω21x2+ω22y2)+ αxy ,where α is constant xdot =ydot means derivative with respect time.
A total of 8.07·106 electrons are placed on an initially uncharged wire of length 3.77 m. What is the magnitude of the acceleration of a proton placed at that point in space
a hot air balloon rises from the ground with a velocity of 2.0 msyhat. a champagne bottle is opened to celebrate
A spacecraft in a circular orbit wishes to transfer to another circular orbit of quarter the radius by means of tangential thrust to move into an elliptical orbit and second tangential thrust at the opposite end
A 190 g ball moving at 0.45 m/s in the + x- direction is subject to a 0.15 N force in the - y- direction for 2.5 s. Find the magnitude of the ball's momentum change
Assume a 40.0-cm-long violin string has a mass of 1.20 g andis vibrating in its fundamental mode at a frequency of 500Hz. What is the wavelength of the standing wave on the string
tarzan who weighs 820 n swings from a cliff at the end of a 20.0 m vine that hangs from a high tree limb and initially
an air-cored solenoid with length 30 cm area of cross-section 25 cm2 and number of turns 500 carries a current of 2.5
A basketball player is standing on the floor 10.0 m from the basket, What is the acceleration of the basketball at the highest point in its trajectory
A pet lamb grows rapidly, with its mass proportional to the cube of its length. Find the lamb's mass at the end of this process
A spherical capacitor is formed from two concentric spherical conducting shells separated by vacuum. The inner sphere has a radius of = 12.1 , and the outer sphere has a radius of = 15.0 . A potential difference of 120 is applied to the capacitor...
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