Two cars approach a street corner at right angles to each other (see Fig. 2). Car 1 travels at 35 km/h and car 2 at 45 km/ h. What is the relative velocity of car 1as seen by car 2?

What is the velocity of car 2 relative to car 1?

When the force acting on an object points at least partially in the direction of the motion the work done is considered to be negative

When is a current produced? when the terminals of an electrochemical cell are connected by a wire if the electric circuit is opened in an electrochemical cell if the electrolyte is removed from an electrochemical cell when the electrodes are reversed in an electrochemical cell

Two balls, each with a mass of 0.5 kg, collide on a pool table. is the law of conservation of momentum satisfied in the collision? explain why or why not