Physics, 21.03.2021 19:30, jessicawolfking
The electric kettle's plastic casing is available in four finishes: matt white, glossy white,
matt black, and glossy black.
Explain which finishing would improve the efficiency of the kettle.
Answers: 1
Physics, 22.06.2019 10:40, rainbowboi
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
Physics, 22.06.2019 21:00, thanitoast84
Ais a machine that makes work easier when a single force is applied. a simple machine b compound machine c endangered machine d complex machine
Answers: 2
The electric kettle's plastic casing is available in four finishes: matt white, glossy white,
matt...
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