Physics, 26.05.2021 06:30 tjjjjjjjjjjjjjjjjjjj

What is the speed of a wave that has a frequency of 850 Hz and a
wavelength of 1.5M?

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Physics, 23.06.2019 01:30, giajramosp2r5da

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Physics, 23.06.2019 08:00, bakerj5203

Diego is trying to lift a piano to the second floor of his house. diego uses a pulley system and gives a big lift to the piano. the piano moves upward, then stops, and then it starts to fall to the ground. which list best describes the forces on the piano in the proper order? a. positive force, balanced force, negative force b. negative force, balanced force, positive force c. positive force, unbalanced force, negative force d. negative force, unbalanced force, positive force