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A laser beam is incident on two slits with a separation of 0.170 millimeter, and a screen is located 5.45 meter from the slits. An interference pattern appears on the screen.
If the angle from the center fringe to the first bright fringe to the side is 0.188 degree, obtain what is the wavelength of the laser light?
A defective starter motor in a car draws 260 A from the car's 12-V battery, dropping the battery terminal voltage to 6.0 V. What will the battery terminal voltage be with a good starter
In a large centrifuge used for training pilots and astronauts, a small chamber is fixed at the end of a rigid arm that rotates in a horizontal circle. How long is the arm of the centrifuge
a 2.71 kg object moves in a plane with velocity components vx 50.0 ms and vy -92.0 ms as it passes through the point
A molecule of DNA (deoxyribonucleic acid) is 2.35 µm long. The ends of the molecule become singly ionized: Determine the effective spring constant of the molecule
a projectile is launched on the earth with a certain initial velocity and moves without air resistance. another
What is the final temperature of the heating element
A 6000 ohm resistor is joined in series with a 70 uF capacitor. what is the capacitive time constant of this combonation
Illustrate what are the velocities of the two people after the snowball is exchanged? Disregard the friction between the skates and the ice.
A ball rolls horizontally off a 45-m high cliff with vo=10 m/s. How far from the base of the cliff will it hit the ground, What is the angular acceleration of the tires
The system pictured below consists of two blocks of mass m connected via springs to two walls. The springs all have spring constant k. Write the equations of motion for this system. Use as your variables the displacement of each block from its res..
how long does it take the sun to melt a block of ice at 0 with a flat horizontal area 1.0 and thickness 2.0 ? assume
A cosmic ray electron moves at 7.85 x 10e6 m/s perpendicular to the earth's magnetic field at an altitude, What is the radius of the circular path the electron follows
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