Physics, 12.07.2019 22:20 livewithgod
Arocket of (variable) mass m is propelled by steadily ejecting part of its mass at velocity u (constant with respect to the rocket). neglecting gravity, the differential equation of the rocket is m(du/dm) =-u as long as u « c, c = speed of light. find v as a function of m if mmo when v-0. in the relativistic region (v/c not negligible), the rocket equation is 2 -c ) 7 solve this differential equation to find v as a function of m. show that v/c- (1 - a)/(1 +2), where (m/mo)2u/e q.3 the surface temperature of a sphere of radius 1 is held at u = sin2 θ + cos3 θ. find the interior temperature u(r, 0,d).
Answers: 2
Physics, 21.06.2019 20:00, jferdi2005
When using two-wire cable to feed a 240-v appliance that does not require a neutral wire, you should a. mark both ends of the white wire green. b. use the cable as is. c. use only the black wire. d. mark both ends and any exposed area of the white wire black.
Answers: 1
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