A car of mass 1000kg traveling north at 4m/s collided with a car of mass 500kg traveling east at 6m/s. The two cars stick together. What is the magnitude of momentum of the two car system immediately after the collision

In a given chemical reaction, the energy of the products is greater than the energy of the reactants. which statement is true for this reaction?

What is the measurement of how fast an object moves relative to a reference point?

In which situation is the acceleration of a car negative? question 5 options: a)the velocity of a car was 75 km/hr over 4 hours. b)the velocity of a car reduced from 50 km/hr over one minute. c)the velocity of a car increased from 40 km.h to 75 km/h over 15 minutes. d)the velocity of a car was 45 km/hr at 2: 00pm and at 4: 00pm its velocity was 85 km/ht.