Physics, 03.04.2020 15:39 anthonybowie99
A 17 W energy-efficient fluorescent lamp is designed to produce the same illumination as a conventional 68 W lamp. How much does this energy-efficient lamp save during 64 h of use? Assume a cost of $0.77/kW · h for electrical energy. Answer in units of dollars.
Answers: 3
Physics, 22.06.2019 05:00
Does work output exceed work input when a machine is used? a) yes, it does, as machines create energy. b) it depends on the type of machine used. c) no, it doesn’t, as machines are inefficient. d) no, it doesn’t, as machines cannot create energy.
Answers: 1
Physics, 22.06.2019 05:30
Will give brainliest! which statement best describes the difference between strong nuclear forces and weak nuclear forces? weak nuclear forces are involved when certain types of atoms break down. strong nuclear forces are responsible for holding atoms' nucleus together. weak nuclear forces hold bonds between atoms together. strong nuclear forces hold together the nucleus of an atom. strong nuclear bonds prevent atoms from falling apart. weak nuclear bonds prevent compounds from falling apart. strong nuclear forces are involved in breaking electrons from their shells. weak nuclear forces hold protons in the nucleus.
Answers: 3
Physics, 22.06.2019 14:20
The energy released by a nuclear fusion reaction is produced when
Answers: 1
Physics, 22.06.2019 17:30
Which of the choices are parts of an atom? select all that apply. a.) compound b.) electron c.) neutron d.) molecule e.) photon f.) proton g.) element
Answers: 1
A 17 W energy-efficient fluorescent lamp is designed to produce the same illumination as a conventio...
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