An 800 kg charging bull rams through a wooden fence. It was travelling at 5 m/s, now it's travelling at 3 m/s. How much impulse did the bull
experience by smashing the fence?

The long handle on a rake is a(n) a. lever b. screw c. wedge d. inclined plane

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?

Language is not the only way that humans communicate. describe how we use sound, touch, chemicals, and sight to communicate. need answer asap