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An automobile tire is rated to last for 30,000 miles. Estimate the number of revolutions the tire will make in its lifetime.
An ideal gas expands at a constant pressure of 2.1 atm from 446 mL to 844 mL. Heat then flows out of the gas, What is the total heat flow into the gas
a. a 0.2-kg block rests over a vertical spring confined to a barrel. it compresses the spring from its original length
The place you get your hair cut has two nearly parallel mirrors 8.00apart. As you sit in the chair, your head is 2.50 from the nearer mirror. Looking toward this mirror, you first see your face and then, farther away, the back of your head. (The m..
A ball is thrown upward with an initial velocity of 96 ft/secfrom the top of a 100 ft building. What equation models the height of the ball as a functionof the time t? When will the ball attain its maximum height?
The temperature of the surface of a certain star is 7500 K. Most hydrogen atoms at surface of the star are in the electronic ground state. What is the approximate fraction of hydrogen atoms that are in the first excited state (and therefore could ..
Visible light passes through a diffraction grating that has 900 slits per centimeter, and the interference pattern is observed on a screen that is 2.46m from the grating. What is the difference between these wavelengths
If the bullet buries itself in the block, find out how far along the ground that the block lands from the base of the table.
A team of tornado-chasing meteorology graduate students is out in search of tornados. What frequency of sound do the students hear
An electron traveling 10^7 m/s to the right enters a constant electric field that slows it to rest. a.)what is the potential different that the electron travels through as it slows down? b.)if the electron travels 0.1 meters before coming to a stop, ..
A broken piano emits frequencies from a low of 32.0 Hz to a high of about 4100 Hz. What is the shortest wavelength if the speed of sound in air is 342.50 m/s? Record the answer to three decimal places and include units in the answer.
A ball is tossed from an upper-story window of a building. The ball is given an initial velocity of 7.60 m/s at an angle of 18.0° below the horizontal. How far horizontally from the base of the building does the ball strike the ground
question1a space station is constructed in the shape of a wheel 20 in diameter with essentially all of its 5.1times105
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