Physics, 08.07.2019 19:00 ayoismeisalex
Asoccer player kicks a ball at an angle of 35 degrees above horizontal with velocity of 25 m/s. assuming there is no air friction, what is the horizontal component of the ball's velocity 1 s after the ball left her foot? a) 4.5 m/s b) 14.3 m/s c) 15.2 m/s d) 20.5
Answers: 1
Physics, 22.06.2019 12:30, spenceraniyah1
An engine undergoes a cycle as shown in the diagram. during a complete cycle the work done by the gas is 28.5×103 j and the energy transferred thermally out is 99.4×103 j. there are 1.5×1024 gas molecules and they have three active degrees of freedom. 6. (6 pts) during which process(es) is energy transferred thermally into the gas? a. 1→2 b. 2→3 c. 4→1 d. 1→2 and 4→1 e. none of the above
Answers: 3
Physics, 22.06.2019 16:50, boopiee2349
Which best describes the first law of thermodynamics as compared to the second law of thermodynamics? a. the first law describes how thermal energy is conserved but not the direction it moves. b. the first law describes the direction thermal energy moves but not how it is conserved. c. the first law describes how thermal energy can be created but not how it can be destroyed. d. the first law describes how thermal energy can be destroyed but not how it can be created.
Answers: 1
Asoccer player kicks a ball at an angle of 35 degrees above horizontal with velocity of 25 m/s. assu...
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