A 0. 500-kilogram cart traveling to the right on a horizontal, frictionless surface at 2. 20 meters per second collides head on with a 0. 800-kilogram cart moving to the left at 1. 10 meters per second. What is the magnitude of the total momentum of the two-cart system after the collision?.

An ecosystem is shown in the illustration. assume that human activities have led to a decrease in the number of eagles. a virus attack on rabbits has led to a decrease in their population in the ecosystem. which two sentences describe likely effects on the ecosystem? 1. there’s an increase in the number of snakes and insects and a decrease in the number of frogs. 2. there’s an increase in the number of snakes and insects, and the storks face increased competition for food. 3. there’s an increase in the number of storks and a decrease in the number of snakes and insects. 4. there’s an increase in the number of frogs and a decrease in the number of storks and insects. 5. there’s a decrease in the number of snakes, insects, and frogs.