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In a Rutherford scattering experiment, each atom in a thin foil can be considered a "target" with a circular cross section. Alpha particles are fired at this target, with the nucleus as the "bull's eye." The ratio of the cross-sectional area of the nucleus to the cross-sectional area of the atom is equal to 2.2 x 10^-7. The radius of the atom is 1.3 x 10^-11m. What is the radius of the nucleus?
A .18 F capacitor is fully charged and has a potential difference( ?V), across its terminals of 9.0 volts. It is connected in series to a 200? resistor, find the energy stored in the capacitor when its fully charged
submarine on the ocean surface receives a sonar echo indicating an underwater object. What is the object's depth
The dew point at a location 50 km 20° south of west of a recording station is 4°C higher than at the station. what is the local change in dew point at the station
A converging lens with a focal length of 30cm and a diverging lens with a focal length of -52cm are 127cm apart. Calculate the distance between image and diverging lens
Billy has a bucket that has a mass of 150 g, in which he put 150 g of fresh water. He has tied 150-cm of string to the handle of the bucket.
In the winter sport of curling, players give a 20kg stone a push across a sheet of ice. How much force does the curler exert on the stone
A speedy tortoise can run at 0.01 meters per second and a hare can run 21 times as fast. In a race they both start at the same time; however the hare stops to rest for 1.50 minutes. So the tortoise wins by a shell (20 cm).
A 150 kg rock (density is 2500 kg/m 3 ) is dropped to a lake. Determine how much force the man needs to life the rock from the bottom of the lake
Two bars of identical mass are at 32 °C. One is made from glass and the other from another substance. The specific heat capacity of glass is 840 J/(kg · C°).
Two long parallel wires each carry a current of 5. A directed to the east. The two wires are separated by 8 cm. What is the magnitude of the magnetic field at a point that is 5.0 cm from each of the wires.
A highway is to be built between two towns, one of which lies 30.0 km south and 83.0 km west of the other. What is the shortest length of highway that can be built between the two towns, and at what angle would this highway be directed?
The potential energy U(r) between any two atoms, when given as a function of the distance between their centers, do the atoms behavemost like a simple harmonic oscillator
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