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An alpha particle with a kinetic energy of 13.0MeV makes a head-on collision with a gold nucleus at rest.
What is the distance of closest approach of the two particles? (Suppose that the gold nucleus remains stationary and that it might be treated as a point charge. The atomic number of gold is 79, and an alpha particle is a helium nucleus consisting of two neutrons and two protons.)
Three pairs of parallel metal plates(A,B,C) are connected as shown in the figure and a battery maintains a potential of 1.5V across ab. What can you say about the potential difference across each pair of plates? Why?
What is the period of oscillation of the scale? State your reply numerically in seconds.
One and one-half moles of an ideal monatomic gas expand adiabatically, performing 7910 J of work in the process. What is the change in temperature of the gas during this expansion
four masses m1 5.30 kg m2 4.10 kg m3 9.30 kg m4 4.10 kg are hanging from the ceiling as shown. they are connected
A ball of mass 8.9 g with a speed of 22.4 m/s strikes a wall at an angle 14.0o and then rebounds with the same speed and angle. find the magnitude of the impulse associated with the collision force
A concave makeup mirror is designed so that a person 22 cm in front of it sees an upright image magnified by a factor of two. What is the radius of curvature of the mirror
A Carnot engine uses a steam boiler at 100°C as the high-temperature reservoir. Determine the useful power output of the heat engine
The wave function for a wave on a taut string is y(x, t) = 0.335 sin(9?t ? 3?x + ?/4) where x and y are in meters and t is in seconds. What is the energy contained in each cycle of the wave
A beam of light is incident on a plane mirror at an angle of 30 degrees to the normal of the mirror. find the angle between the incident beam and reflected beam
A top is a toy that is made to spin on its pointed end by pullingon a string wrapped around the body of the top. The string has alength of 56 cm and is wound around thetop at a spot where its radius is 1.2 cm.The thickness of the string is negligi..
A horizontal 790-N merry-go-round of radius 1.60 m is started from rest by a constant horizontal force of 55 N applied tangentially to the merry-go-round
Interpreting attenuation as a reflection loss calculate the lower limit to the effective reflectivity at the core cladding boundary
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