Physics, 11.01.2020 05:31 natalie6089
Arunaway train car that has a mass of 13,000 kg travels at a speed of 6.0 m/s down a track. compute the time (in s) required for a force of 1000 n to bring the car to rest.
Answers: 2
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For a particular reaction, ? h = -144.6 kj and ? s = -301.2 j/k. calculate ? g for this reaction at 298 k.
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Determine the maximum r-value of the polar equation r =3+3 cos 0
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Astudent creates a model of a closed ecosystem by filling a glass tank half full with water, then adding 10 snails and two small aquatic plants. the next day, all the snails are dead. what is the most likely cause of their death?
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Ablock of mass m slides on a horizontal frictionless table with an initial speed v0 . it then compresses a spring of force constant k and is brought to rest. the acceleration of gravity is 9.8 m/s2. how much is the spring compressed x from its natural length? 1) x = v0*sqrt(k/(mg)) 2) x=v0*sqrt(m/k) 3) x=v0*((mk)/g) 4) x=v0*sqrt(k/m) 5) x=v0*(m/kg) 6) x=v0*sqrt((mg)/k) 7) x=(v0)^2/(2g) 8) x=v0*(k/(mg)) 9) x=(v0)^2/(2m) 10) x=v0*((mg)/k)
Answers: 3
Arunaway train car that has a mass of 13,000 kg travels at a speed of 6.0 m/s down a track. compute...
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