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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.
A 10 turn square coil has an area 14.0 cm2 and is rotated by an angular speed of190.0 rad/s in a uniform 0.10 T magnetic field. The axis of the coil is perpendicular to the field at all times. What is the frequency of the sinusoidal voltage induced a..
A uniform solid disk, with a mass of 2.0 kg and 20 cm in diameter, is rotating about an axis through its center at 200 rpm. Calculate the final angular velocity of the combination
In a football game a kicker attempts a field goal. The ball remains in contact with the kicker's foot for 0.050 s, find the horizontal and vertical components of the launch velocity
A 10-kg disk-shaped flywheel of radius 9.0 cm rotates with a rotational speed of320 rad/s. Determine the rotational momentum of the flywheel.
A mass and spring are arranged on a horizontal, The spring constant is k = 570 N/m, and the mass is 5 kg. Find the velocity of the mass when it leaves the spring
An 800 N billboard worker stands on a 4.0 m scaffold supported by vertical ropes at each end. what is the tension in the rope nearest the worker
question an electron moves in a 0.5nt b-field. if the radius of the circular orbit is 1cm what is its period angular
A machine shop has 120 equally noisy machines that together produce an intensity level of 92 dB. If the intensity level must be reduced to 82 dB, how many machines must be turned off?
A coil of inductance 78.8 mH and unknown resistance and a 0.66μF capacitor are connected in series with an alternating emfof frequency 910 Hz. what is the resistance of the coil
Block A of mass 3 kg slides into block B of mass 2 kg. Before collision, block A moves to the right with speed 10 m/s and block B is stationary, what is the kinetic energy change for the system
Calculate density of sphere # 1 only. Using the slope of the ln (Diameter) vs ln (mass) graph find the power of the diameter for a case when mass of sphere is a function of the diameter
A device has a 100 g wooden shuttle that is pulled horizontally along a square frictionless wooden rail by an elastic band. find the magnitude of the initial acceleration of the shuttle
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