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A recent study found that electrons having energies between 3.25 eV and 20.3 eV can cause breaks in a DNA molecule, even though they do not ionize the molecule. If a single photon were to transfer its energy to a single electron, what range of light wavelengths could cause DNA breaks?
a) minimum wavelength
b) maximum wavelength
Not wanting to blow out the battery in the old truck from an over current, there is placed a resistor of 12 Ohms in series with the circuit from the 3 batteries. Judging from the heat of the resistor this person believes that 12 watts of heat is b..
A cylinder of mass 11.0 kg rollswithout slipping on a horizontal surface. What is the rotational kinetic energy about its center of mass
A coiled wire forms a spiral with 243 turns, a diameter of 2.3 cm, and an unstretched length of 27 cm. Determine the self-inductance of the coil
in each cycle of a carnot engine 97 j of heat is absorbed from the high-temperature reservoir and 63 j is exhausted to
Two point charges are on the y-axis. A 2.5 µC charge is located at y = 1.45 cm, and a -2.30 µC charge is located at y = -1.20 cm. Discover the total electric potential at the origin.
An electron moving parallel to a uniform electric field increases its speed from 1.5 x 107 m/s to 4.5 x 107 m/s over a distance of 1.7cm. What is the electric field strength
What are the tensions T1 through T5 and force F needed to lift the box with an acceleration of 0.13 m/s2? see the pic 2. You are playing tetherball with your friend, when you both get so enthralled in the motion of the ball that you stop hitting i..
An AC generator has 85 rectangular loops on its armature. Each loop is 13 cm long and 7 cm wide. What will be the maximum output voltage of this generator
Assume that you wish to construct a simple AC generator with an output of 12 V maximum when rotated at 60 Hz. a magnetic field of 0.050T is available. If the area of the rotating coil is 100cm2, how many turns are needed?
A car traveling at 28mi/h is to stop on a 34m long shoulder of the road. What is the required magnitude of the minimum acceleration
A stone is dropped into a river from a bridge 41.9 m above the water. What is the initial speed of the second stone
A rabbit runs in the straight line with a velocity of +1.6 m/s for a period of time, rests for 12 s, and then runs again along the equivalent line at +0.52 m/s for an unidentified amount of time. The rabbit travels the total distance of 1224 m, and i..
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