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(a) An ideal gas occupies a volume of 3.0-cm3 at 20°C and atmospheric pressure. Determine the number of molecules of gas in the container.
(b) If the pressure of the 3.0-cm3 volume is reduced to 2.8 x 10-11 Pa (an extremely good vacuum) while the temperature remains constant, how many moles of gas remain in the container?
The center fielder for the school's baseball team throws a 0.150-kg baseball towards home plate at a speed of 26.0 m/s, What is the kinetic energy of the baseball
The intensity of a sound produced by a point source decreases as the square of the distance from the source. What is the maximum distance at which the riveter is still audible
two lasers are shining on a double slit with slit separation. laser 1 has a wavelength of d20 whereas laser 2 has a
Two very large parallel plates are oppositely and uniformly charged. The field between the plates is 1.7×106N/C, How much total charge is on each plate if they are 18.0cm on a side
A 5.0 ice cube at -20 is in a rigid, sealed container from which all the air has been evacuated. How much heat is required to change this ice cube into steam
A parallel-plate capacitor has plates of area 0.2 m2separated by a distance of 0.003 m. What is the strength of the electric field between these plates when this capacitor isconnected to a 5-V battery?
You are driving north on 107th Avenue at a speed of 31.2 mph. At what frequency do you hear the siren
A force vector has a magnitude of 577 newtons and points at an angle 43o of below the positive x axis. What is (a) x scalar component and (b) y scalar component of the vector.
A small, 300g cart is moving at 1.30m/s on an air track when it collides with a larger, 5.00kg cart at rest. What is the speed of the large cart after the collision
Light of wavelength 631 passes through a diffraction grating having 485. What is the angle of the bright spot farthest from the center
A tennis player hits a 58.0 tennis ball so that it goes straight up and reaches a maximum height of 6.35. How much work does gravity do on the ball
A 1000 kg artillery shell is fired from a battleship. What net external force is exerted on the artillery shell before it leaves the barrel of the gun
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