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Light from a laser falling on two slits produces the third-order fringe at an angle of 8.8 degrees. If the light from the laser is 640nm, what is the distance between the two slits?
A sound source emits sounds of frequency 210Hz that travel by still air at 340m/s. The listener moves at 75 m/s relative to still air toward the stationary source. What is wavelength of the sound between the source and the listener.
After reaching his lowest point, he oscillates up and down, hitting a low point eight more times in 44.0. He finally comes to rest 22.0 below the level of the bridge. Illustrate what is the spring stiffness constant?
As expected, the predictions of Coulomb's law are well confirmed. You find that the forces are: repulsive? or attractive? 2. and that the magnitude of each force is?
At 12 breaths/min, on a dry day when the inhaled air has almost no water content, what is the body's rate of energy loss (in J/s) due to exhaled water
A 15 pF capacitor is charged to 1 kV and then removed from the battery and connected in parallel to an uncharged 65 pF capacitor
The left ventricle of the heart accelerates blood from rest to a velocity of + 25.9 cm/s, How much time does blood take to reach its final velocity
The index of refraction for red light in water is 1.331 and that for blue light is 1.340. what are the underwater angles of refraction for the blue and red components of the light
Dynamics of Toboggan and Block on Ice, A 4.0 kg toboggan rests on a frictionless icy surface, and a 2.0 kg block rests on top of the toboggan. The coefficient of static friction µs between the block and the surface of the toboggan is 0.58
An electron is released from rest at the negative plate of a parallel plate capacitor. The charge per unit area on each plate is ? = 3.00 10-7 C/m2, and the plates are separated by a distance of 2.9 10-2 m. How fast is the electron moving just bef..
A satellite moves in a circular orbit around the Earth at a speed of 5680 m/s. Determine the period of the satellite's orbit
A brass rod with a length of 1.40m and a cross-sectional area of 2.37cm2 is fastened end to end to a nickel rod with length L and cross-sectional area 0.720cm2, What is the strain in the nickel rod
The power supply for a pulsed nitrogen laser has a 0.0050-mF capacitor with a maximum voltage rating of 30 kV, calculate the power of the laser pulse
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