A 1,800kg car has a momentum of - 50,400kgm/s. What is the velocity of the car?

The process by which a characteristic spreads across space from one place to another over time is diffusion. True / False.

Which best describes the difference between internal and thermal energy?

This is two or more elements chemically combined in a fixed ratio. Example: water, carbon dioxide, sodium chloride

Electric charges that are different attract each other.

Light passing through a prism is an example of A. Reflection B. Refraction C. Diffraction D. Destruction

The steps in the heating of a metal seat in a park are listed below: Step 1: Heat travels from the sun to Earth Step 2: Heat travels through atmosphere to the top of the seat Step 3: Heat from the top of the seat travels through the seat to the

If a ride at disneyworld goes from rest to 27 m/s in 2.8 seconds and the mass of the ride and riders together 5000kg. What is the average power required to do this? Give your answers in both watts and horsepower

Which of the following is a property of an object not a result of something happening to the object? Select one: weight a. b. inertia C. momentum d. force

You are operating a boat with a power ventilation system. you have just fueled this boat. how long should you let the ventilation system run before starting the engine?

Which sampling method subdivides the population into categories sharing similar characteristics and then selects a sample from each subdivision? Choose the correct answer below. a. Stratified b. Convenience c. Systematic d. Cluster