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Problem: In 1911, Ernest Rutherford discovered the nucleus of the atom by observing the scattering of helium nuclei from gold nuclei. If a helium nucleus with a mass of 6.68 x 10-27 kg, a charge of +2e, and an initial velocity of 1.26 x 107 m/s is projected head-on toward a gold nucleus with a charge of +79e,
Part A: How close will the helium atom come to the gold nucleus before it stops and turns around?
I need help to solve the above question and assume the gold nucleus is held in place by other gold atoms and does not move.
The electric field at point P just outside the outer surface of a hollow spherical conductor of inner radius 10 cm, What is it on the outer surface
A model of a red blood cell portrays the cell as a spherical capacitor, a positively charged liquid sphere of surface area A separated from the surrounding negatively charged fluid by a membrane of thickness t. Find the charge on the surface of the..
A liquid (? = 1.65 g/cm3) flows through two horizontal sections of tubing joined end to end. In the first section the cross-sectional area is 10.0 cm2, the flow speed is 265 cm/s, and the pressure is 1.20 105 Pa.
A step-down transformer has 2000 turns on the primary and 300 turns on the secondary, what is the secondary voltage amplitude
A small grinding wheel has a moment of inertia of 4.0×10?5 . What net torque must be applied to the wheel for its angular acceleration to be 150
A 4.0 uF capacitor is initially uncharged and connnected in series with a 4.0 kQ reisitor. How long will it take for the capacitor to reach one fourth of this maximum charge
A bungee jumper with a mass of 65.0 kg jumps from a high bridge. After reaching his lowest point, he oscillates up and down, hitting a low point more times in 38.0s. He finally comes to rest at 25.0m below the level of the bridge. Calculate the st..
an rc circuit is connected across a dc voltage source through an open switch. the switch is closed at t0s. which of the
Biological muscle cells can be thought of as nanometres that utilize the chemical energy of ATP to produce mechanical work. Measurements show that the active proteins within a muscle cell (such as myosin and act in) can produce a force of about 7.5 p..
a telescope consists of a mirror with radius of curvature 4.5 m and an eyepiece. if an astronomer would like the
A solenoid with 1000 turns has a cross-sectional area of 7.0cm2 and a length of 25cm. how much energy is stored in the magnetic field of the solenoid
A variable-length air column is placed just below a vibrating wirethat is fixed at both ends. The length of the air column open at one end is graduallyincreased from zero until the first position of resonance isobserved at L = 34.0 cm.
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