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gavmur [86]
3 years ago
12

Determine the kinetic energy of a 1000 kg roller coaster car that is moving with a speed of 20.0 m/s

Mathematics
1 answer:
Vedmedyk [2.9K]3 years ago
3 0
KE = 0.5*m*v2 KE = (0.5) * (1000 kg) * (20 m/s)2
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the sum of ava’s and grace’s ages is 35. Ava is one year less than three time Grace’s age. How old is Ava, x and Grace, y expres
pantera1 [17]

Answer:

Ava is 26 and Grace age is 9

Step-by-step explanation:

x=ava's age

y=grace's age

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Substitute 3y-1 to x+y=35 for the value of x to find grace age

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zepelin [54]

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Step-by-step explanation:

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Ann paid $5.20 in sales tax for an $80 purchase. What percent sales tax
Doss [256]

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