A toy plane with a mass of 20 kg is flying at 10 m/s. What is its kinetic energy?
A. 1 000 J
...
Answers: 3
Physics, 22.06.2019 09:30
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: 3
Physics, 22.06.2019 13:00
Which of the following correctly describes what happens when an atomic bomb explodes? small pieces of fissionable material are joined and form a body with a mass greater than the critical mass, the relative number of neutrons escaping decreases, and a chain reaction and explosion result. large pieces of fissionable matter are brought together quickly and form a body with a mass smaller than the critical mass, the relative number of escaping neutrons increases, and a chain reaction and explosion result.
Answers: 2
Physics, 22.06.2019 19:00
The direction of the current in an alternating current circuit remains constant. is direct. changes repeatedly. changes randomly.
Answers: 1
Computers and Technology, 08.12.2019 15:31
Mathematics, 08.12.2019 15:31
Social Studies, 08.12.2019 15:31
Social Studies, 08.12.2019 15:31
Spanish, 08.12.2019 15:31
Mathematics, 08.12.2019 15:31
Mathematics, 08.12.2019 15:31
Biology, 08.12.2019 15:31
Mathematics, 08.12.2019 15:31
Mathematics, 08.12.2019 15:31
History, 08.12.2019 15:31