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A lid is put on a box that is 14 centimeter long, 18 centimeter wide, and 8.0 centimeter tall and the box is then evacuated until its inner pressure is 4.6 x 104 Pa.
(a) Find how much force is required to lift the lid at sea level?
(b) Find how much force is required to lift the lid in Denver on a day when the atmospheric pressure is 67.5 kPa (2/3 the value at sea level)?
Light with a frequency of 2.99 x 1015 Hz ejects electrons from the surface of zinc, which has a work function of4.33 eV. What is the minimum de Broglie wavelength of the ejected electrons?
The velocity of a particle is v(t)=k, 0 (less than or equal)
A person drops a cylindrical steel bar (Y = 6.0 × 1010 Pa) from a height of 2.00 m (distance between the floor and the bottom of the vertically oriented bar). The bar, of length L = 0.58 m, radius R = 0.50 cm, what is the maximum compression of the..
The specific heat of a certain 50 g metallic block is 900 J/kg K. If the block is at an initial temperature of 80 degrees Celsius, and dropped into a 50 g bucket of water at 1 degree Celsius, Find the final temperature of the system
How fast must a rocket travel on a journey to and from a distant star so that the astronauts age 12.0 years while the Mission Control workers on earth age 110 years and as gauged by Mission Control, how far away is the distant star?
At what angle to the surface must a diver submerged in a lake look toward surface to see the setting Sun just all along the horizon.
Proton one moves twice as fast as proton two. The magnitude of the magnetic field in which proton one is immersed is twice the magnitude of the magentic field in which proton two is immersed.
A 50 g block of ice at 0 °C rests in a pan in a room at 22 °C and melts completely. What is the entropy change (in cal/K) in the ice system
A omega ?? (mass = 1672 MeV/c2) at rest decays into a kaon K? (mass = 493.7 MeV/c2) and a lambda ?0 (mass = 1115.7 MeV/c2): ?? ? K? + ?0, What is the total kinetic energy of the kaon and lambda
A fly appears to be upside down and 3 times its actual size when viewed through a converging lens with a focal length of 14 cm. How far is the fly from the lens
A wave traveling in the +x direction has an amplitude of 0.421 m, Write the equation of the wave
The Big Bang Theory suggests leftover background radiation. Find the wavelength of this radiation
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