СРОЧНО ПОМОГИТЕ ПОЖАЛУЙСТА! Яку роботу потрібно виконати щоб підняти алюмінієву плиту об‘ємом 1,5 м кубічних на висоту 20 м. Яка потужність даного механізму, якщо час виконання 6хв?

Arotating space station is said to create “artificial gravity”—a loosely-defined term used for an acceleration that would be crudely similar to gravity. the outer wall of the rotating space station would become a floor for the astronauts, and centripetal acceleration supplied by the floor would allow astronauts to exercise and maintain muscle and bone strength more naturally than in non-rotating space environments. if the space station is 200 m in diameter, what angular velocity would produce an “artificial gravity” of 9.80 m/s^{2} 2 at the rim?

Steam enters an adiabatic diffuser at 150 kpa and 1208c with a velocity of 550 m/s. determine the minimum velocity that the steam can have at the outlet when the outlet pressure is 300 kpa.

Which one of the following research methods can show cause and effect