Determine a alternativa que indica corretamente o nome das estruturas que compõem a
fibra muscular esquelética.
A) Miofibrila, miofilamentos, miocárdio.
B) Sarcômero, túbulos T, periósteo.
C) Miofibrila, sarcolema, miofilamentos.
D) Sarcômero, osteoclastos, actina.
E) Miosina, mioglobina, miocárdio.

Abucket full of water weights 4 kg and water well is 10m deep. a girl draws water from the well. it takes the girl 3 minutes to draw a bucket full of water from the well. what is the power of the girl?

Give one example to show that when substances are mixed,it may result in a chemical or a physical change depending on the conditions.

On a frictionless air track, a blue glider with mass 0.200 kg is moving to the right with a speed of 8.00 m/s. it strikes a red glider that has mass 0.600 kg and that is initially at rest. after the collision, the blue glider is moving to the left with a speed of 3.00 m/s.(a) what are the magnitude and direction of the velocity of the red glider after the collision? (b) is this collision elastic?