Which object is in static equilibrium?

Find v(t), given acceleration a(t)=7j and initial velocity v(0)=k

Greg drew a diagram to compare two of the fundamental forces. which labels belong in the areas marked x, y and z? gravitational force electromagnetic force x. attractive y repulsive z: infinite range x: infinite range y attractive z. repulsive x. always attractive y: infinite range z: attractive or repulsive x. attractive or repulsive y infinite range z: always attractive

What are the similarities & differences between a thermistor and a light dependent resistor in physics?