Which of these minerals are essential for muscle health? (Select all that apply.) potassium
sodium
iodine
calcium

Awave is produced in a rope. the wave has a speed of 33 m/s and a frequency of 22 hz.

At time t=0, a particle is located at the point (3,6,9). it travels in a straight line to the point (5,2,7), has speed 8 at (3,6,9) and constant acceleration 2i−4j−2k. find an equation for the position vector of the particle.

You can watch static electricity in action by rubbing an inflated balloon against your hair. your hair will actually stand on its end! it does this because each hair becomes charged, and they all repel one another.