Physics, 08.09.2020 09:01 bugsbunny27
In a closed system that has 560 J of mechanical energy, the gravitational
potential energy of a weight being lowered by a pulley decreases from 250 J
to 175 J. How does the system's kinetic energy change if there is no friction??
O A. It increases from 560 J to 735 J.
O B. It decreases from 385 J to 310 J.
O C. It decreases from 560 J to 485 J.
D. It increases from 310 J to 385 J.
Answers: 1
Physics, 22.06.2019 06:30
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Answers: 3
Physics, 22.06.2019 11:30
Write down two additional questions about earth's magnetic field that will make your presentation more informative.
Answers: 1
Physics, 22.06.2019 18:30
Daughter element the new element produced along with a decay particle in a nuclear transmutation 2. half-life the substance that decays in a nuclear transmutation 3. parent element the change of one chemical element into another by nuclear decay or radioactive bombardment 4. transmutation the time required for the decay of one-half of the atoms in a sample of radioactive material
Answers: 2
Physics, 22.06.2019 21:30
Calculate the minimum energy required to remove one proton from the nucleus 126c. this is called the proton-removal energy. (hint: find the difference between the mass of a 126c nucleus and the mass of a proton plus the mass of the nucleus formed when a proton is removed from 126c.) express your answer with the appropriate units. emin e m i n = nothing nothing request answer part b how does the proton-removal energy for 126c compare to the binding energy per nucleon for 126c, calculated using eb=(zmh+nmn−azm)c2?
Answers: 1
In a closed system that has 560 J of mechanical energy, the gravitational
potential energy of a wei...
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