¿Cual es equivalente de T= 4,42 horas en el sistema sexagesimal? (Justifica tu respuesta) a) 4h 42min 0seg b) 4h 4min 2seg c) 4h 25min 12seg d) 4h 18min 30seg

Name three different units of energy used to measure heat and describe what type of situations each is usually used.

Hydrogen atoms are excited by a laser to the =4n=4 state and then allowed to emit. what is the maximum number of distinct emission spectral lines (lines of different wavelengths) that can be observed from this system? 8 6 2 7 4 5 1 3 calculate the wavelength of the 4⟶14⟶1 transition. =λ=

A14 kg rock starting from rest free falls through a distance of 5.0 m with no air resistance. find the momentum change of the rock caused by its fall and the resulting change in the magnitude of earths velocity. earth mass is 6.0 * 10^24 kg. show your work assuming the rock earth system is closed.