Explain how creating a model provides a practical solution for some scientific research.

1. Explain the three states of matter. Use water as an example.

A stunt car with a mass of 1,000 kilograms crashes into a tree on a movie set. During the collision, the acceleration of the car was 3 meters/second2. What was the force of impact of the collision on the car?

If A, B, and C are three activities connected with SS and FF (combination) relationships with 2-day lag on SS relationship only. Their durations are 5, 10, and 3 respectively. What is the duration of the project? a. 5 days. b. 10 days. c. 3 days.

What is hemispheric specialization?

1. What is the Doppler Effect? 2. How can the Doppler Effect be useful for a forensic investigation involving a shooting? If you found a firearm at a crime scene, what steps would you take in order to transport the weapon to the lab?

11. Which of the following best explains velocity? A. The direction of an object in motion B. Only the change of direction of an object in motion C. The speed and direction of an object in motion D. The speed of an object in motion

Using 6400 km as the radius of Earth, calculate how high above Earth's surface you would have to be in order to weigh 1/16th of your current weight. Show all work leading to your answer OR describe your solution using 3 - 4 complete sentences.

Which of these could occur if a switch is closed? A. A light bulb will light up. B. A hair dryer will turn off. C. A computer will shut down. D. B and C

When you throw a ball the work you do to accelerate it equals the kinetic energy the ball gains?

Old-fashioned heating systems sent steam into radiators in each room of a house. in the radiators, the steam condensed back to water. analyze this process and explain how it heated a room.