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Todas as categorias

6 respostas

E=v²*m/2

E=20²*1500/2
E=400*750

E=300000 J

E=300 kJ

2006-11-21 06:58:50 · answer #1 · answered by Luiz S 7 · 1 0

Ec = (m*v^2)/2

Ec = (1500*20^2)/2

Ec = 3 x 10^6 J

ou Ec = 3 MJ = 300 kJ

Abraço!

2006-11-21 15:00:00 · answer #2 · answered by mecatron 4 · 0 0

m.v 2/2 nao é...? fica 1500 x 40 /2 = 30 x 10³ j
achu q é isso

2006-11-21 14:45:31 · answer #3 · answered by Carlinha 3 · 0 1

Aqui não é lugar para fazer o dever de casa.

2006-11-21 14:43:18 · answer #4 · answered by Anonymous · 0 1

0,5 * massa * velocidade * velocidade.

logo: 0,5 * 1600 * 400 = 1600 * 200 = 320.000 Joules.

Sera ?

2006-11-21 14:36:06 · answer #5 · answered by Anonymous · 0 1

vc deve ter dificuldades com as mulheres, hein... pára com essas bobagens aki...

2006-11-21 14:35:59 · answer #6 · answered by Anonymous · 0 1

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