The diagram does not represent a real electric field because the field lines __

Agymnast dismounts off the uneven bars in a tuck position with a radius of 0.3m (assume she is a solid sphere) and an angular velocity of 2rev/s. during the dismount she stretches out into the straight position, with a length of 1.5m, (assume she is a uniform rod through the center) for her landing. the gymnast has a mass of 50kg. what is her angular velocity in the straight position?

What is the length x of the side of the triangle below? (hint: use the cosine function)

What are the factors that affect the resistance of a wire?