Hell all me life or death situation

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hell all please help me life or death situation

the starship enterprise wishes to fly to a distant galaxy 85 light years away. at what speed would it have to travel in order that the distance to the galaxy would only be 20 light years? :rolleyes:

a movving particle has a rent mass which is double in its kinetic energy. Find its speed and momentum :!)

you are sitting at rest on your brrom stick one day when a witch flies by at 0.25c the witch says her boomstick is 1.3 m long and yours is 1.5 m long what so you dtermine the length of these two brromsticks to be?
 
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did you already post these problems in the homework section?
DON"T DOUBLE POST PLEASE...THIS IS A SELFISH BEHAVIOR... YOU ARE WASTING OUR TIME TO READ THE SAME POST AGAIN... IF YOU JUST WANT PEOPLE DO HW FOR YOU... HIRE A PRIVATE TUTOR... WE DON"T DO HW FOR PEOPLE...
 
A set of homework problems really isn't a life or death situation. But welcome to physics forum. If you read the FAQ's here, you'll see that there is a forum set aside for homework problems, and that showing your attempts to solve the problems is highly encouraged.
 
I Do Have Atutor He Sux! =)
 

Thread 'A sufficient condition for integrability of equation ##\nabla g=0##'

In Philippe G. Ciarlet's book 'An introduction to differential geometry', He gives the integrability conditions of the differential equations like this: $$ \partial_{i} F_{lj}=L^p_{ij} F_{lp},\,\,\,F_{ij}(x_0)=F^0_{ij}. $$ The integrability conditions for the existence of a global solution ##F_{lj}## is: $$ R^i_{jkl}\equiv\partial_k L^i_{jl}-\partial_l L^i_{jk}+L^h_{jl} L^i_{hk}-L^h_{jk} L^i_{hl}=0 $$ Then from the equation: $$\nabla_b e_a= \Gamma^c_{ab} e_c$$ Using cartesian basis ## e_I...
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Thread 'Relativator (Circular Slide-Rule): Simulated with Desmos - Insight'

Insights auto threads is broken atm, so I'm manually creating these for new Insight articles. The Relativator was sold by (as printed) Atomic Laboratories, Inc. 3086 Claremont Ave, Berkeley 5, California , which seems to be a division of Cenco Instruments (Central Scientific Company)... Source: https://www.physicsforums.com/insights/relativator-circular-slide-rule-simulated-with-desmos/ by @robphy
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Thread 'Hawking After 54 Years Confirmed: BH surfaces don't shrink'

Abstract The gravitational-wave signal GW250114 was observed by the two LIGO detectors with a network matched-filter signal-to-noise ratio of 80. The signal was emitted by the coalescence of two black holes with near-equal masses ## m_1=33.6_{-0.8}^{+1.2} M_{⊙} ## and ## m_2=32.2_{-1. 3}^{+0.8} M_{⊙}##, and small spins ##\chi_{1,2}\leq 0.26 ## (90% credibility) and negligible eccentricity ##e⁢\leq 0.03.## Postmerger data excluding the peak region are consistent with the dominant quadrupolar...
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