9. Mushka thought it would be funny to run over Gani with a shopping cart, she comes at her with a force of 220 N. Gani pushes back with all of her might, at only a force of 130
N. Natasha saw this and came to Gani's aid, she helped her push back with an additional
force of 120 N. It ended up being, that the cart was pushed at an acceleration of 2 m/s?.
What is the mass of the cart?

Astudent creates a model of a closed ecosystem by filling a glass tank half full with water, then adding 10 snails and two small aquatic plants. the next day, all the snails are dead. what is the most likely cause of their death?

Chemical energy is a form of energy. a. heat b. kinetic c. potential d. electromagnetic

This is important 1. what happens to the speed of molecules in water vapor when it condenses to form a liquid? (2 points) the molecules slow down. the molecules speed up. the molecules slow down and then speed up. the molecules speed up and then slow down. 2. how might human activities change to compensate for a decrease in water supplies? (2 points) humans might build a factory. humans might build drainage systems. humans might extract more water from the ground. human behavior does not change because of the water cycle. i'll be grateful if anyone can answer these 2 questions !