Physics, 27.11.2019 21:31 chiliboy8394
5) an electron gun sends out a beam of electrons whose kinetic energies are all about 57 μμev. (1 μev=1.6×10−25 j1 μev=1.6×10−25 j.) you need to set up a magnetic field perpendicular to the beam that causes it to turn through a 90∘∘ circular arc of length 2 mm. how strong must the magnetic field be? [note: electrons have a mass of about 9.11×10-31 kg.]
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The first law of thermodynamics states that heat added to a system is neither created nor destroyed but is transformed ⇒ as it changes into other forms of energy.
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Physics, 21.06.2019 21:30
Astudent looks at ocean waves coming into the beach. an ocean wave with more energy will a) have a greater height. b) have a greater period. c) travel toward the beach faster. d) strike the beach with greater frequency.
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Assume that a person skiing high in the mountains at an altitude of h = 15100 ft takes in the same volume of air with each breath as she does while walking at sea level. determine the ratio of the mass of oxygen inhaled for each breath at this high altitude compared to that at sea level. assume that the air composition (i.e. % of air that is oxygen) is the same at sea level as it is at 15100 ft.
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Physics, 22.06.2019 16:00
While the change in blank will remain the same during a collision, the force needed to bring an object to a stop can be blank if the time if collision is blank
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5) an electron gun sends out a beam of electrons whose kinetic energies are all about 57 μμev. (1 μe...
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