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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?
The box of a well-known breakfast cereal states that one ounce of the cereal contains 144 Calories (1 food Calorie = 4186 J). what is the heaviest barbell
The components of the electric field in an electromagnetic wave traveling in vacuum are described by Ex = 0, Ey = 0, and Ez = 4.88 sin(kx - 1.44×108 t) V/m, where x is measured in meters and t in seconds.
A car moving at 8 m/s crashes into a barrier and stops in 0.050 s. There is a 17-kg child in the car. What is the impulse needed to stop the child
A wooden block with mass 1.75kg is placed against a compressed spring at the bottom of a slope inclined at an angle of 33.0?, Calculate the amount of potential energy that was initially stored in the spring
An airplane flies 200 km due west from city A to city B and then 315 km in the direction of 33.0° north of west from city B to city C.
Find the magnetic flux through a circular loop 4.6 cm in diameter oriented with the loop normal at 58 degrees to a uniform 80 mT magnetic field
two point charges are located on the y axis as follows: charge q1 = -1.50nC at y1 = -0.550m , and charge q2 = 4.10nC at the origin, What is the magnitude of the net force
A dielectric-filled parallel-plate capacitor has plate area of 30cm^2 and plate separation of 5mm. The capacitor is connected to a battery that creates a constant voltage of 10V. The dielectric constant is 3. All through the problem, use epsilon_0..
An artillery shell is red with an initial velocity of 328 m/s at 51.1 degrees above the horizontal. To clear an avalanche, it explodes on a mountainside 42.1 s after fi ring. What are the (a) x and (b) y coordinates of the shell where it explod..
A 2.00×104kg railroad car is rolling at 1.00m/swhen a 5000kg load of gravel is suddenly dropped in.What is the car's speed just after the gravel is loaded
A 1.5-V battery is connected in series with a 3.3-k? resistor, a 4.7-k? resistor, and a 1.0-k? resistor. Calculate the current (in mA) through and the voltage (in V) across each resistor
Find the power delivered by the good battery, and discuss where this power goes, assuming that the emf's and resistances of each battery remain the same throughout the process
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