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Do sound waves exhibit diffraction effects? If so, determine the "slit" width that would diffract an audible sound wave (frequency between 20 Hz and 20 kHz). Would a doorway work or do you need a different sized opening?
Two forces are applied to a car in an effort to move it, as shown in the following figure, where F1 = 423 N and F2 = 355 N. What is the resultant of these two forces
You are investigating an accident where a 1500 kg car that was parked without its emergency brake on rolled down a hill with a slope of 8 degrees a distance of 150 m, How fast was the car moving when it hit the van
Youâ€TMre writing specifications for a new line of magnifying glasses that have double-convex lenses with equal 22.0cm curvature radii, What do you list for the focal length
On a hot day, the temperature of an 81099-L swimming pool increases by 4 degrees celcius. What is the net heat transfer during this heating
In a two-slit experiment, the slit separation is 3.00 Ã- 10-5 m. The interference pattern is recorded on a flat screen-like detector that is 2.00 m away from the slits.
A circular saw blade completes 1200 revolutions in 40 rm s while coasting to a stop after being turned off. Assuming steady deceleration, what are (a) angular deceleration and (b) initial angular speed.
A listener increases his distance from a sound source by a factor of 3.03. what is the change in the sound intensity level in dB
A penny slides off a table 30in high and falls straight to the floor. How long does it take for the penny to fall
A popular pastime is to see who can push an object closest to the edge of a table without its going off. You push the 100 g object and release it 1.50 from the table edge. what was the object's speed as you released it
A parallel plate capacitor has a capacitance of 4.5 µF when filled with a dielectric. What is the dielectric constant of the dielectric
An electron with a speed of3.6105m/s enters a uniform magnetic field of magnitude0.057T at an angle of 35° to the magnetic field lines. The electron will follow a helical path.
A small glass bead has been charged to + 30{rm nC} . a)What is the magnitude of the acceleration of a proton that is 3.0{rm cm} from the center of the bead? b)What is the magnitude of the acceleration of an electron that is 3.0{rm cm} from the cen..
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