Isaac tosses a twig into a river to figure out how quickly the water is flowing. He observes that the twig travels 21 meters south in three seconds. Based on his observations, what is the velocity of the twig?

Which statement best describes how private industry decides where to spend on research and development

When a river flows into an ocean, it slows down and deposits materials in its alluvial fan/delta

Only one force acts on an object, can the object have zero acceleration? can the object have zero velocity? explain.

What are the components for ALL matter?

Sue and Jenny kick a soccer ball at exactly the same time. Sue's foot exerts a force of 52.6 N to the north. Jenny's foot exerts a force of 112.8 N to the east. a) What is the magnitude of the resultant force on the ball? Answer in units of N.

Luke investigated the heating of water

In the nucleus of all atoms are sub-atomic particles called protons and neutrons. all protons have a positive charge.

In a polar covalent bond

Lindsay is late to class and is running down the hallway at a speed of 2 m/s the length of the hallway is 150 meters. How long will it take her to run down the hallway?

Which of the following is evidence that groundwater causes erosion and deposition?