R
7. Each of the coil springs of a car has a spring constant of 25,000 N/m. How much is
each...
Answers: 1
Physics, 21.06.2019 22:20
Acave rescue team lifts an injured spelunker directly upward and out of a sinkhole by means of a motor-driven cable. the lift is performed in three stages, each requiring a vertical distance of 11.0 m: (a) the initially stationary spelunker is accelerated to a speed of 4.80 m/s; (b) he is then lifted at the constant speed of 4.80 m/s; (c) finally he is decelerated to zero speed. how much work is done on the 78.0 kg rescue by the force lifting him during each stage
Answers: 2
Physics, 22.06.2019 05:30
Could someone . i have tried to solve myself but my calculation is off
Answers: 3
Physics, 22.06.2019 09:00
In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j? 1. write the equation 2.list out your known variables 3.plug the numbers into the equations 4.solve 5.write your solution statement that includes initial energy and final
Answers: 1
Physics, 22.06.2019 12:50
Air is contained in a variable-load piston-cylinder device equipped with a paddle wheel. initially, air is at 400 kpa and 17°c. the paddle wheel is now turned by an external electric motor until 75 kj/kg of work has been transferred to air. during this process, heat is transferred to maintain a constant air temperature while allowing the gas volume to triple. calculate the required amount of heat transfer in kj/kg.
Answers: 2
Mathematics, 16.10.2021 16:00
Business, 16.10.2021 16:00
Biology, 16.10.2021 16:00
Mathematics, 16.10.2021 16:00
Business, 16.10.2021 16:00
Social Studies, 16.10.2021 16:00
Spanish, 16.10.2021 16:10
SAT, 16.10.2021 16:10
SAT, 16.10.2021 16:10
English, 16.10.2021 16:10
English, 16.10.2021 16:10
Mathematics, 16.10.2021 16:10