Assume the acceleration of the object is a(t) = −9.8 meters per second per second. (Neglect air resistance.) With what initial velocity must an object be thrown upward (from a height of 3 meters) to reach a maximum height of 460 meters? (Round your answer to one decimal place.)
Answers: 3
Physics, 22.06.2019 02:50
Steam is generated in a boiler of a cogeneration plant at 10 mpa and 450°c at a steady rate of 5 kg/s. in normal operation, steam expands in a turbine to a pressure of 0.5 mpa and is then routed to the process heater, where it supplies the process heat. steam leaves the process heater as a saturated liquid and is pumped to the boiler pressure. in this mode, no steam passes through a condenser, which operates at 20 kpa. (a) determine the power produced in the turbine and the rate at which process heat is supplied in this mode. (b) determine the power produced in the turbine and the rate of process heat supplied if only 60 percent of the steam is routed to the process heater and the remainder is expanded to the condenser pressure. (3.32 mw; 9.69 mw; 4.25 mw; 5.82 mw)
Answers: 3
Physics, 22.06.2019 04:00
All the simple machines make work easier to do by changing the or of a force. a. size; type b. work; type c. size; direction d. type; direction
Answers: 2
Physics, 22.06.2019 09:00
Chemical energy is a form of energy. a. heat b. kinetic c. potential d. electromagnetic
Answers: 2
Physics, 22.06.2019 13:20
Ahanging spring stretches by 35.0 cm when an object of mass 450 g is hung on it at rest. in this situation, we define its position as x = 0. the object is pulled down an additional 18.0 cm and released from rest to oscillate without friction. what is its position x at a moment 84.4 s later? express your answer in cm.
Answers: 1
Assume the acceleration of the object is a(t) = −9.8 meters per second per second. (Neglect air resi...
Mathematics, 21.05.2021 17:40
Mathematics, 21.05.2021 17:40
Mathematics, 21.05.2021 17:40
Mathematics, 21.05.2021 17:40
English, 21.05.2021 17:40
Mathematics, 21.05.2021 17:40
Mathematics, 21.05.2021 17:40
Mathematics, 21.05.2021 17:40
Mathematics, 21.05.2021 17:40