Physics, 12.11.2019 02:31 kimlyn58p0wyn0
Estimate the linear separation (in kilometers) of two objects at a distance of 2.6 × 108 km that can just be resolved by an observer on earth (a) using the naked eye and (b) using a telescope with a 5.0-m diameter mirror. use the following data: diameter of pupil = 5.0 mm; wavelength of light = 550 nm.
Answers: 2
Physics, 21.06.2019 16:30
A12-kg bag of groceries is tossed onto a table at 4.0 m/s and slides to a stop in 2.2 s . modify the equation fδt=δ (mv) to find the force of friction.
Answers: 2
Physics, 22.06.2019 12:30
Consider a hydrogen atom in the ground state. what is the energy of its electron? =e= jj now consider an excited‑state hydrogen atom. what is the energy of the electron in the =5n=5 level? =e5= j
Answers: 3
Physics, 22.06.2019 13:10
A0.750 kg aluminum pan is removed from the stove and plunged into a sink filled with 10.0 kg of water at 293 k. the water temperature quickly rises to 297 k. what was the initial temperature of the aluminum pan? the specific heat of aluminum is ca = 900 j/(kgk) and water is cw = 4190 j/(kgk)
Answers: 3
Estimate the linear separation (in kilometers) of two objects at a distance of 2.6 × 108 km that can...
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