Answers: 3
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
Physics, 22.06.2019 19:40
Two charged particles, q1 and q2, are located on the x-axis, with q1 at the origin and q2 initially at x1 = 12.2 mm. in this configuration, q1 exerts a repulsive force of 2.62 µn on q2. particle q2 is then moved to x2 = 18.0 mm. what is the force (magnitude and direction) that q2 exerts on q1 at this new location? (give the magnitude in µn.)
Answers: 1
Physics, 23.06.2019 21:50
Which of the following is not a physical property of matter: 1) melting point 2) heat of combustion 3) viscosity 4) boiling point
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Physics, 24.06.2019 02:50
Problem page try again your answer is wrong. in addition to checking your math, check that you used the right data and did not round any intermediate calculations. calculate the mass of gold(iii) chloride that contains a trillion chlorine atoms. be sure your answer has a unit symbol if necessary, and round it to significant digits.
Answers: 2
A player throws a basketball with a force of 30.0 N. If the mass of the basketball is 0.625 kg, what...
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