Question List for "Physics"

  Topics Views Last post
Physics » A ray of light traveling in water hits a glass surface. The index of refraction of the water is ... New
Started by abarnes
61 Jul 29, 2018
Physics » A heat engine receives 7000 J of heat and loses 3000 J in each cycle. What is the efficiency of this ... New
Started by Arii_bell
69 Jul 29, 2018
Physics » A laser pulse of duration 25 ms has a total energy of 1.4 J. If the wavelength of this radiation is ... New
Started by rl
32 Jul 29, 2018
Physics » A point on a wheel of radius 40 cm that is rotating at a constant 5.0 revolutions per second is ... New
Started by audragclark
83 Jul 29, 2018
Physics » A carpenter is driving a 15.0-g steel nail into a board. His 1.00-kg hammer is moving at 8.50 m/s ... New
Started by jCorn1234
23 Jul 29, 2018
Physics » A heat engine with an efficiency of 30 performs 2500 J of work. How much heat is discharged to the ... New
Started by 123654777
111 Jul 29, 2018
Physics » A proton has an initial velocity to the south but is observed to curve upward as the result of a ... New
Started by V@ndy87
50 Jul 29, 2018
Physics » A metal surface has a work function of 2.50 eV. What is the longest wavelength of light that will ... New
Started by debasdf
316 Jul 29, 2018
Physics » A certain automobile engine takes in 4.00 kJ of heat and performs 1.10 kJ of mechanical work in each ... New
Started by audie
102 Jul 29, 2018
Physics » An electron is confined in a harmonic oscillator potential well. What is the longest wavelength of ... New
Started by tichca
28 Jul 29, 2018