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Two stars are 8 light years from earth. The 550nm light from the 2 stars are barely distinguished in the diffraction pattern of 90 cm wide single slit. How far apart are the stars?
A pitcher throws a baseball at 41.0 m/s. If the ball thrown horizontally at this speed, explain how much will it drop by the time it reaches the catcher who is 17.0 m away from the point of release?
A solid disk of mass M and radius R is pivoted so that it can rotate about its center. The disk is initially at rest. A ball of mass m and speed v travels along a path tangential to the rim of the disk.
For a particular collision you detect the emitted products and find 15 protons, 2 antiprotons, 6 positrons, and 25 neutral particles. How many electrons are also emitted?
The bullet lodges in the forehead of the victim and comes to a rest. If the victim's head has a mass of 5 kg and was at rest before impact, what is the stress on the cervical vertebra
An ice skater is rotating at 3.4rev/seconds while her arms are beside her. The moment of inertia of the skater is 5kg x m^2. what is her new angular velocity
An oscillating LC circuit has a current amplitude of 8.00 mA, a potential amplitude of 250 mV, and a capacitance of 215 nF. What is the maximum energy stored in the capacitor
A transformer has 280 turns in the primary and 110 turns in the secondary. by what factor does it change the voltage
Find the slit seperation of a double slit system that will produce bright interference fringes 1.00 degrees apart
A ray of light passing through air is incident on a piece of quartz (n=1.46) at an angle of 25 degrees. Calculate the deviation d of the ray as it emerges back into the air
A molecule of DNA (deoxyribonucleic acid) is 2.08 µm long. The ends of the molecule become singly ionized: negative on one end, Determine the effective spring constant of the molecule
A uniform disk with a mass of 775 g and radius 17.0 cm is rotating on frictionless bearings with an rotational speed of 18.0 Hz, What is the new rotational speed of the disk
Four charges are located in the x-y plane as follows: q@(0,0); 3q @ (a,0); 2q @ (0,a) and -4q @ (a,a). What is the electric force at the center of this distribution
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