How many wavelengths are between you and the source
The source of an intense 780. Hz whistle sound is 800. meters away. If the sound travels at 341. m/s, how many wavelengths are between you and the source?
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How far behind the concave lens should the film be placed? What is the linear magnification of this lens combination?
On a very muddy football field, a 120 linebacker tackles an 85 halfback. Immediately before the collision, the linebacker is slipping with a velocity of 8.7 north and the halfback is sliding with a velocity of 7.4 east. What is the direction and a
How old is the mummy? Determine its age in years assuming that in living trees the ratio of 14C/12C atoms is 1.23E-12.
Cyber-warfare conjures up images of information warriors unleashing vicious attacks against an unsuspecting opponent's computer networks, wreaking havoc and paralyzing nations.
What is the centripetal acceleration of a point on the perimeter of a bicycle wheel of diameter 70.0 cm when the bike is moving 8.00 m/s?
How can companies offering "free" products (e.g., Linux, Netscape) make money from these products? How can other companies compete with these fast-rising standard products?
In New England, the horizontal component of the Earth's magnetic field has a magnitude of 1.6 x 10-5 T. An electron is shot vertically straight up from the ground with a speed of 2.8 x 106 m/s. What is the magnitude of the acceleration caused by t
A broad beam of light of 630 nm is normally incident on a thin, wedge-shaped film with an index of refraction 1.50. Light transmitted through the film gives 10 bright and 9 dark bands along the film length. What is the change in thickness of the
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