A mola da figura abaixo está comprimida por dois blocos, A e B, de massas mA =2,0 kg e mB =3,0 kg, sobre um plano horizontal sem atrito, presa por um fio. Quando o fio se rompe, o sistema é solto. Verifica-se que o bloco B adquire velocidade de módulo vB =4,0 m/s. Determine o módulo da velocidade adquirida pelo bloco A.
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Physics, 22.06.2019 12:00
Suppose a wire with a current is pushed upward by a magnetic field. how would the wire move if the direction of the current reversed? explain your answer.
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Physics, 22.06.2019 17:00
If a negatively charged particle is placed at rest in an electric potential field that increases in the positive x-direction, what will the particle do? a. accelerate in the positive x-direction b. remain at rest c. accelerate in the negative x-direction
Answers: 3
Physics, 22.06.2019 19:30
Aplayground slide is 8.80 ft long and makes an angle of 25.0° with the horizontal. a 63.0-kg child, initially at the top, slides all the way down to the bottom of the slide. (a) choosing the bottom of the slide as the reference configuration, what is the system's potential energy when the child is at the top and at the bottom of the slide? what is the change in potential energy as the child slides from the top to the bottom of the slide? (include the sign of the value in your answer.)
Answers: 3
A mola da figura abaixo está comprimida por dois blocos, A e B, de massas mA =2,0 kg e mB =3,0 kg, s...
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