What metric unit is used to describe the mass of an object

A 2,500 kg car traveling to the north is slowed down uniformly from 20.0 m/s by a 6,250 N braking force acting opposite the car's motion. a) What is the cars velocity after 2.50 s? b) How far does the car move during 2.

What is the definition for model system

Green light can have a wavelength of 543 nm. the energy of a photon of this light is

Ultraviolet rays from the sun are able to reach Earth's surface because A. They require air to travel through B. They have less energy than infrared rays C. They have lower frequencies than visible light D. They can travel through empty space

Two masses sit at the top of two frictionless inclined planes that have different angles. Which mass gets to the bottom first?

Use your knowledge of the state of matter and the other physical properties of matter to write an explanation for what may have caused the following situation: Although it hasn't rained in a week, every morning the grass and the car windows are wet.

What is three example of technology

Lisa has three classes that each last 50 minutes qhat ia the total nuber of minutes of minutes of the three classe?

Which has a greater speed a heron hat travels 600m in 60 seconds or a duck that travels 60 m in 5 seconds? Explain

A machine shovel moves dirt at the rate of 1,100 pounds of dirt 1 foot in 1 second. How many horsepower is this?