Suppose you have 7 pieces of wood shown to the right. Predict what will happen to the mass of the pieces of wood if you put them together without cutting them to make a bird house.

When a 5.0kg cart undergoes a 2.2m/s increase in speed, what is the impulse of the cart

A100 kg running back runs at 5m/s into a stationary linebacker. it takes 0.5 for the running back to be completely stopped

Large electric fields in cell membranes cause ions to move through the cell wall. the field strength in a typical membrane is 1.0 x 10 7 n/c. what is the magnitude of the force on a calcium ion with charge +e? what is its acceleration? is it possible for a particle with the same charge as as calcium to have a different acceleration if placed at this location? what would change the acceleration: mass of the particle? diameter of the particle?