Physics, 25.07.2019 08:40 karyvillanuevap5w9ym
Which best describes nuclear fission? a. a nucleus spontaneously splits and absorbs energy. b. two nuclei spontaneously combine and absorb energy. c. a nucleus collides with a neutron and splits, releasing energy. d. nuclei combine to form a heavier nucleus, releasing energy.
Answers: 2
Physics, 22.06.2019 00:00
Which is not a characteristic of a heat pump? a. it is used in air conditioners. b. it uses a refrigerant. c. it requires no work. d. it reverses the normal flow of thermal energy.
Answers: 2
Physics, 22.06.2019 15:20
What component of earth’s atmosphere exists entirely as a result of photosynthesis?
Answers: 2
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, 23.06.2019 00:30
Which of the following is a true statement about the acceleration ~a of the pendulum bob ~a is equal to the acceleration due to gravity. ~a is perpendicular to the bob’s trajectory. ~a is equal to the instantaneous rate of change in velocity. ~a is tangent to the bob’s trajectory.
Answers: 1
Which best describes nuclear fission? a. a nucleus spontaneously splits and absorbs energy. b. two...
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