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Question: Derive an expression and numerical value for the distance of closest approach of an alpha to a gold nucleus, when the impact parameter is b=0 (i.e., a head-on collision). Use conservation of energy, and take the alpha particle energy to be 6 MeV (1 MeV = 1.602E-13 J). How does this compare with the Bohr radius? Why the difference, if any?
A 250 g block of wood hangs from a light string 0.78 m long. The block is shot with a bullet of mass 4.2 g, what was the velocity of the bullet just before it hit the block
A proton is passing through a uniform, 0.500-T magnetic field and is directed along the x axis. find the pitch of the helix
An ice chest at a beach party contains 12 cans of soda at 2.90 °C. Each can of soda has a mass of 0.35 kg and a specific heat capacity of 3800 J/(kg C°). Someone adds a 9.12-kg watermelon at 27.5 °C to the chest.
A toy train is pushed forward and released at xi = 3.0m with a speed of 2.5m/s . It rolls at a steady speed for 2.6s, and then one wheel begins to stick. The train comes to a stop 7.5m from the point at which it was released.
Light of wavelength 5.70 x 102nm passes through a slit of width 0.210 mm. Determine the width of the first-order bright fringe
A car with mass 1000kg traveling east at 25 (m/s) runs straight into a truck with mass 1500kg traveling west at 10 (m/s). How far do the vehicles slide
A magician wishes to create the illusion of a 2.84 m tall elephant. He plans to do this by forming a virtual image of a 51.0cm tall model elephant with the help of a spherical mirror. How far from the mirror will the image be formed
The spacing between two closely spaced oppositely charged parallel plates is decreased. Explain what happens to the electrostatic potential difference between the plates
A double-slit experiment has slit spacing 3.8 × 102 mm, slit-to-screen distance 2.2 m, and wavelength 500 nm. What is the phase difference between two waves arriving at a point 0.48cm from the center line
A resistor with 325? and an inductor are connected in series across an ac source that has voltage amplitude 520V. What is the power factor
Is this due to lack of reproducibility or poor-quality experiments (or both)? Discuss why forefront experiments are more subject to observational problems than those involving established phenomena.
An intergalactic rock star bangs his drum every 1.52 s. A person on earth measures that time between beats is 2.10 s. How fast is the rock star moving relative to the earth.
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