Physics, 24.06.2021 14:00 AnastasiaJauregui
Gia tốc a và vận tốc v cùng chiều khi nào trong một chu kì dao động điều hòa ?
Answers: 1
Physics, 21.06.2019 15:00
Answer asap! the weather patterns on earth are shown in this image. explain why there are convection currents; why there are hotter and colder parts of earth.
Answers: 1
Physics, 21.06.2019 18:40
The intensity, or loudness, of a sound can be measured in decibels (db), according to the equation , where i is the intensity of a given sound and is the threshold of hearing intensity. what is the intensity, in decibels, [i(db)], when ? use a calculator. round to the nearest whole number. 8 9 19 80
Answers: 1
Physics, 21.06.2019 19:30
Is it possible to use the energy from two atoms colliding to create a clean burning lasting fuel source with a large amount of force? is it also possible to harness that energy from the two atoms colliding to create a clean energy source that will last for years from just two atoms colliding. is there a possibility to control and store that energy for years but slowly let the energy out enough to power cities cheaper and faster.
Answers: 3
Physics, 22.06.2019 10:40
As you are trying to move a heavy box of mass m, you realize that it is too heavy for you to lift by yourself. there is no one around to , so you attach an ideal pulley to the box and a massless rope to the ceiling, which you wrap around the pulley. you pull up on the rope to lift the box. use g for the magnitude of the acceleration due to gravity and neglect friction forces. once you have pulled hard enough to start the box moving upward, what is the magnitude f of the upward force you must apply to the rope to start raising the box with constant velocity? express the magnitude of the force in terms of m, the mass of the box.
Answers: 1
Gia tốc a và vận tốc v cùng chiều khi nào trong một chu kì dao động điều hòa ?...
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