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Ten grams of ice at -20°C is to be changed to steam at130°C. The specific heat of both steam and ice is 0.5 cal/g °C. The heat of fusion is 80cal/g and the heat of vaporization is 540 cal/g. How much heat is necessary for the entire process?
A person with a black belt in karate has a fist that has a mass of 0.70 kg. What is the magnitude of the average net force
Electricity and process heat requirements of a manufacturing facility are to be met by a cogeneration plant consisting of a gas turbine and a heat exchanger for steam production.
Standing waves on a wire are described by y(x, t)=(A_{\rm SW} {\rm sin} kx ){\rm sin} \omega t, with A_{\rm SW} = 2.50mm , \omega = 976rad/s , and k = 0.730\pi \; rad/m . The left end of the wire is at x = 0.
A cylindrical space probe adjusts its shape by extending and retracting masses. The probe is set rotating along the cylinder’s axis and released. The maximum rotation rate is 5 rps and minimum rotation rate is 1 rps.
At a time when mining asteroids has become feasible, astronauts have connected a line between their 3310-kg space tug, How much time does it take for the ship and the asteroid to meet
In the Bohr model of hydrogen, the electron moves in a circular orbit around the nucleus. Determine the angular speed of the electron
A cylindrical fishing reel has a mass of .60 kilogram and a radius of 4.4 centimeter. Determine the force of the fish on the line
If Argentinosaurus, a long-necked, gigantic sauropod, had a head height of 19 m and a heart height of 9.1 m, What was the blood pressure (in torr or mm Hg) at the feet
A hydrogen atom that is initially at rest absorbs a photon with an energy of 18 eV. What is the momentum of the atom after it absorbs the photon
A neutron star is the remnant left after certain supernovae (explosions of giant stars). What is a typical neutron star density in g/cm3
What do we call mineralsthat have the same combinations of elements, but a different arrangement of element?
Light inside an optical fiber tube hits the wall between the tube and air and is totally internally reflected. what is the index of refraction of the tube
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