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For a particle in a cubical box and in its ground state, given an accurate estimate of the probability for finding the particle in a cube at the center of the box and occupying 10^-6 of the total volume
to examine a particular blood sample in biology lab a student uses a compound microscope set to have a magnification of
A weightlifter bench-presses a 130.0 kg barbell from his chest to a height equal the length of his arms 0.850 m. How much work does he do? What is the potential energy of the barbell relative to the weightlifter\'s chest after he lifts the barbell
A ball is dropped from the top of a building. In the absence of air resistance, the ball will hit the ground with a speed of 49 m/s. The height of the building is
at three corners of a rectangle length 11.8 cm height 5.9 cm the following charges are located q1 upper left corner q2
A 45.0-kg girl is standing on a 133-kg plank. The plank, originally at rest, is free to slide on a frozen lake, which is a flat, frictionless surface. What is her velocity relative to the surface of ice
If you had 102 L of water and you wanted to make a solution with a salt concentration of 0.2 g/L, how much salt would you need to add
A satellite is in a circular orbit very close to the surface of a spherical planet. The period of the orbit is 1.85 hours. What is density of the planet
A block rests on a spring and oscillates with a frequency of 4Hz and an amplitude of 7cm. What is the speed of the bead at the instant when it loses contact with the block
Two astronauts are at rest in outer space, one 19.7 m from the Space Shuttle and the other 39.4 m from the Shuttle. Using a 129.0-W laser, how long will it take her to reach the Space Shuttle
The beam emerging from a ruby laser (wavelength 694.3 nm) passes through a circular aperture 6.2 mm in diameter. what is the angular spread of the beam
A cubical Gaussian surface surrounds two charges,q1 = +6.8×10-12 C and q2 = -2.0×10-12 C, as thedrawing shows. What is the electric flux passing through the surface?
a wedding ring of diameter 2.21 cm is tossed into the air and given a spin resulting in an angular velocity of 13
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