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An oxygen atom at a particular site within a DNA molecule can be made to execute simple harmonic motion when illuminated by infrared light. The oxygen atom is bound with a speing-like chemical bond to a phosphorous atom is bound which is rigidly attached to the DNA backbone. The oscillation of the oxygen atom occurs with frequency ƒ=3.7 x 1013Hz. If the oxygen atom at this site is chemically replaced with a sulphur atom, the spring constant of the bond is unchanged (sulphur is just below oxygen in the Period Table). Predict the frequency for a DNA molecule after the sulphur substition.
In attempting to jump start a car of mass 1100kg, two brotherseach push with an equal force of magnitude 670N parallel to thecar's velocity. Find the friction force that acts on the car
Three equal point charges each with charge 1.45 μC are placed at the vertices of an equilateral triangle whose sides are of length 0.400m. What is the electric potential energy of the system. Take as zero the potential energy of the 3 charges when ..
In lab, your instructor generates a standing wave using a thin string of length L = 2.10m fixed at both ends. What is the maximum transverse speed vy of the bead
Determine how long it would take for a net charge of 2.1CC to pass a location in a wire if it is to carry a steady current of 6.2 mA
In civil aviation, a "standard turn" for level flight of apropeller driven airplane is one in which the airplane makes acomplete circular turn in 2.0min. calculate the centripetal acceleration of the plane
A sort of "projectile launcher" is shown in Fig. 20-65. A large current moves in a closed loop composed of fixed rails, a power supply, and a very light, almost frictionless bar touching the rails. A magnetic field is perpendicular to the plane of th..
An object is oscilliating on a spring with a period of 4.60 s . At time t= 0.00 s the object has zero speed and is at x = 8.30 cm
Write the physics essay/report about Endeavour Space Shuttle
Two capacitors with C1 = 600 pF and C2 = 780 pF are connected in parallel. What is the reactance of the equivalent capacitance at33 kHz
A 0.060 kilogram handball is thrown straight toward a wall with a speed of 10 m/s. Determine what impulse is exerted on the wall
Red light of wavelength 630 nm passes through two slits and then onto a screen that is 1.8 m from the slits. The center of the 3rd order bright band on the screen is separated from the central maximum by 0.86 cm . Determine the frequency of the li..
A whistle produces a sound wave of frequency of 500 Hertz. Determine what is the wavelength of this sound
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