Physics, 28.01.2021 07:00 aiguillen6228
Brlan is repairing an old alarm clock. He needs to replace a device that converts the electric energy into sound energy. Which of these devices
should he use?
OA.
O B.
C.
battery
buzzer
motor
Switch
Answers: 2
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Identify the type of synthetic material used in each object
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The of a machine determines its "usefulness." a. input force b. output force c. mechanical advantage
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Consider a hydrogen atom in the ground state. what is the energy of its electron? =e= jj now consider an excited‑state hydrogen atom. what is the energy of the electron in the =5n=5 level? =e5= j
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