subject
Physics, 12.04.2021 15:30 laraekeyes

Самолёт массой 15 000 кг летит на высоте 1000 м над землёй со скоростью 360 км/ч. В результате манёвра самолёт поднимается на высоту 1500 м и начинает двигаться со скоростью 200 м/с. 1) Запишите начальную скорость самолёта в м/с. 2) Вычислите полную энергию самолёта относительно земли до выполнения манёвра. Ответ запишите в МДж. 3) Какую работу должен совершить двигатель самолёта, чтобы выполнить данный манёвр? Запишите ответ в МДж. Потерями энергии пренебречь. Напишите полное решение этой задачи.

ansver
Answers: 3

Other questions on the subject: Physics

image
Physics, 21.06.2019 23:00, desiwill01
We want to calculate the total metabolic heat generated by a singing canary taking into account heat transfer by radiation, convection and exhaling air. the air temperature is 20 oc, canary’s body internal and surface temperature is 33oc, external body surface convective heat transfer coefficient is 25.2 w/m2 .k, temperature difference between the inhaled and exhaled air is 4.3 oc, the ventilation rate is 0.74 cc of air per second, specific heat of air is 1.0066 kj/kg. k and density of air is 1.16 kg/m3 . assume the canary’s body to be a cylinder with 7 cm diameter and 9 cm length, and heat exchange is from the side as well as the top and bottom of cylinder. calculate 1) the net rate of heat lost by radiation, assuming heat gained by the bird through radiation from the surroundings is 11.5 w; 2) rate of heat transferred by convection to the surrounding air; 3) rate of heat transferred in the exhaling air without considering any internal evaporation; 4) total metabolic power.
Answers: 2
image
Physics, 22.06.2019 06:30, nofer
If an atom contains 11 protons in its nucleus, predict the element with the atomic number and electronic configuration. will the number of electrons remain the same during the chemical reaction in such an atom? explain.
Answers: 3
image
Physics, 22.06.2019 12:00, fryday2516
Lacie kicks a football from ground level at a velocity of 13.9 m/s and at an angle of 25.0° to the ground. how long will the ball be in the air before it lands? how far will the football travel before it lands?
Answers: 1
image
Physics, 22.06.2019 15:50, sophie5064
Ryan is examining the energy of the particles in a bar of gold. what is ryan most likely studying?
Answers: 1
You know the right answer?
Самолёт массой 15 000 кг летит на высоте 1000 м над землёй со скоростью 360 км/ч. В результате манёв...

Questions in other subjects: