subject
Physics, 28.04.2021 20:00 jjjxxcsenone1034

К. р. 1) При строгании рубанком преодолевается сила сопротивления 80 Н. Какая работа совершается для снятия стружки длиной 2,6 м? 2) Какую работу совершает насос за один час, если он каждую минуту выбрасывает 1200 л воды на высоту 24 м?3) Воробей массой 100 г летит на высоте 2 м со скоростью 18 км/ч. Определите полную механич. энергию.4) Как изменится кинетическая энергия тела, если его скорость уменьшится в 3 раза? 5) Массу груза увеличили в 5 раз, а высоту его подъема уменьшили в 3 раза. Как изменилась потенциальная энергия груза? мне нужно срочно с дано и решением пожалуйста ✍✍​

ansver
Answers: 3

Another question on Physics

question
Physics, 22.06.2019 00:20
Aparticle of mass m is projected with an initial velocity v0 in a direction making an angle α with the horizontal level ground as shown in the figure. the motion of the particle occurs under a uniform gravitational field g pointing downward. (a) write down the lagrangian of the system by using the cartesian coordinates (x, y). (b) is there any cyclic coordinate(s). if so, interpret it (them) physically. (c) find the euler-lagrange equations. find at least one constant of motion. (d) solve the differential equation in part (c) and obtain x and y coordinates of the projectile as a function of time. (e) construct the hamiltonian of the system, h, and write down the hamilton’s equations (canonical equations) of motion.
Answers: 2
question
Physics, 22.06.2019 01:00
4. who was the first one to measure the speed of light and conclude that it is finite? 5. who was the first philosopher who thought the speed of light is finite? 13. what is the speed of light numerically? 14. give an example of something moving faster than light 15. give an example for some particles or waves that
Answers: 1
question
Physics, 22.06.2019 05:30
A2-kg bowling ball is 2.5 meters off the ground on a post when it falls. just before it reaches the ground, it is traveling 7 m/s. assuming that there is no air resistance, which statement is true?
Answers: 3
question
Physics, 22.06.2019 06:20
Atwo-stage air compressor operates at steady state, compression 10m^3/min of air from 100 kpa and 300k to 1200 kpa. an intercooler between the two stages cools the air to 300k at a constant pressure of 350 kpa. the compression processes are isentropic. a) calculate the power required to run the compressor, in kw b) compare the result to the power required for isentropic compression from the same inlet state to the same final pressure.
Answers: 1
You know the right answer?
К. р. 1) При строгании рубанком преодолевается сила сопротивления 80 Н. Какая работа совершается для...
Questions
question
Mathematics, 20.02.2020 20:13
Questions on the website: 13722367