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1. A thin (1 mg/cm2) target of 48Ca is bombarded with a 1 0-nA beam of cc particles. A detector, subtending a solid angle of 2 x 10-3 steradians, records 15 protons per second. If the angular distribution is measured to be isotropic, determine the total cross section (in mb) for the 48Ca(α,p) reaction. Take the atomic mass of 48Ca to be 48 u.
3. Calculate the maximum energy a 5-MeV α particle can transfer to an electron initially at rest. Assume the α particle is infinitely massive compared with the electron.
On a banked race track, the smallest circular path on which cars can move has a radius of 102 m, while the largest has a radius 157 m, Find the smallest and largest speed the cars can remove without the presence of friction
An electron with 184eV of kinetic energy in free space passes over a finite potential well 72eV deep that stretches from x=0 to \(x = 0.5\) nm. What is the electron's wavelength in free space
As an ice skater begins a spin, his angular speed is 3.36 rad/s. find the ratio of the skater's final moment of inertia to his initial moment of inertia
A bus is traveling at a speed of 25m/s along a level road. Find the shortest distance in which the bus can come to a halt without causing the crate to slip forward relative to the bus
If a simple pendulum with length 1.50m makes 72.0 oscillations in 180s, what is the acceleration of gravity at its location?
Light is diffracted when it passes through a narrow single slit. What happens to the width of the central maximum in the diffraction pattern when the width of the slit trough which light passes is reduced.
A hollow metal sphere has 7cm and 11cm inner and outer radii, respectively. The surface charge density on the inside surface is 200nC/m2. What is the direction and strength of the electric field
A string is stretched between fixed supports separated by 73.0 cm. It is observed to have resonant frequencies of 390, What is the wave speed for this string
Calculate the number of electrons in a small, electrically neutral silver pin that has a mass of 7.0 g.Silver has 47 electrons per atom, and its molar mass is 107.87g/mole.
Presume a diode consists of a cylindrical cathode with a radius of 6.200×10 -2cm, mounted coaxially within a cylindrical anode with a radius of 0.5580 cm. The potential dissimilarity between the cathode and anode is 360V. An electron leaves the su..
What is the kinetic energy of a 0.5-kg object moving at a constant speed of 2 m/s, A physics-110 student needs 500 W of Power to climb two flights of staris to get to the physics class room in 40 s
A man pushing a crate of mass m = 92.0 kg at a speed of v = 0.860 m/s encounters a rough horizontal surface of length scripted l = 0.65 m, Find the net work done on the crate while it is on the rough surface
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